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2020-02-28KVM: Pre-allocate 1 cpumask variable per cpu for both pv tlb and pv ipisWanpeng Li1-12/+21
Nick Desaulniers Reported: When building with: $ make CC=clang arch/x86/ CFLAGS=-Wframe-larger-than=1000 The following warning is observed: arch/x86/kernel/kvm.c:494:13: warning: stack frame size of 1064 bytes in function 'kvm_send_ipi_mask_allbutself' [-Wframe-larger-than=] static void kvm_send_ipi_mask_allbutself(const struct cpumask *mask, int vector) ^ Debugging with: https://github.com/ClangBuiltLinux/frame-larger-than via: $ python3 frame_larger_than.py arch/x86/kernel/kvm.o \ kvm_send_ipi_mask_allbutself points to the stack allocated `struct cpumask newmask` in `kvm_send_ipi_mask_allbutself`. The size of a `struct cpumask` is potentially large, as it's CONFIG_NR_CPUS divided by BITS_PER_LONG for the target architecture. CONFIG_NR_CPUS for X86_64 can be as high as 8192, making a single instance of a `struct cpumask` 1024 B. This patch fixes it by pre-allocate 1 cpumask variable per cpu and use it for both pv tlb and pv ipis.. Reported-by: Nick Desaulniers <[email protected]> Acked-by: Nick Desaulniers <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Nick Desaulniers <[email protected]> Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-28KVM: Introduce pv check helpersWanpeng Li1-10/+24
Introduce some pv check helpers for consistency. Suggested-by: Vitaly Kuznetsov <[email protected]> Reviewed-by: Konrad Rzeszutek Wilk <[email protected]> Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-28KVM: let declaration of kvm_get_running_vcpus match implementationChristian Borntraeger1-1/+1
Sparse notices that declaration and implementation do not match: arch/s390/kvm/../../../virt/kvm/kvm_main.c:4435:17: warning: incorrect type in return expression (different address spaces) arch/s390/kvm/../../../virt/kvm/kvm_main.c:4435:17: expected struct kvm_vcpu [noderef] <asn:3> ** arch/s390/kvm/../../../virt/kvm/kvm_main.c:4435:17: got struct kvm_vcpu *[noderef] <asn:3> * Signed-off-by: Christian Borntraeger <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-28KVM: SVM: allocate AVIC data structures based on kvm_amd module parameterPaolo Bonzini1-1/+2
Even if APICv is disabled at startup, the backing page and ir_list need to be initialized in case they are needed later. The only case in which this can be skipped is for userspace irqchip, and that must be done because avic_init_backing_page dereferences vcpu->arch.apic (which is NULL for userspace irqchip). Tested-by: [email protected] Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=206579 Reviewed-by: Miaohe Lin <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-24KVM: s390: rstify new ioctls in api.rstChristian Borntraeger1-15/+18
We also need to rstify the new ioctls that we added in parallel to the rstification of the kvm docs. Signed-off-by: Christian Borntraeger <[email protected]> Reviewed-by: David Hildenbrand <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-23KVM: nVMX: Check IO instruction VM-exit conditionsOliver Upton2-7/+52
Consult the 'unconditional IO exiting' and 'use IO bitmaps' VM-execution controls when checking instruction interception. If the 'use IO bitmaps' VM-execution control is 1, check the instruction access against the IO bitmaps to determine if the instruction causes a VM-exit. Signed-off-by: Oliver Upton <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-23KVM: nVMX: Refactor IO bitmap checks into helper functionOliver Upton2-14/+27
Checks against the IO bitmap are useful for both instruction emulation and VM-exit reflection. Refactor the IO bitmap checks into a helper function. Signed-off-by: Oliver Upton <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-23KVM: nVMX: Don't emulate instructions in guest modePaolo Bonzini1-1/+1
vmx_check_intercept is not yet fully implemented. To avoid emulating instructions disallowed by the L1 hypervisor, refuse to emulate instructions by default. Cc: [email protected] [Made commit, added commit msg - Oliver] Signed-off-by: Oliver Upton <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-23KVM: nVMX: Emulate MTF when performing instruction emulationOliver Upton8-2/+83
Since commit 5f3d45e7f282 ("kvm/x86: add support for MONITOR_TRAP_FLAG"), KVM has allowed an L1 guest to use the monitor trap flag processor-based execution control for its L2 guest. KVM simply forwards any MTF VM-exits to the L1 guest, which works for normal instruction execution. However, when KVM needs to emulate an instruction on the behalf of an L2 guest, the monitor trap flag is not emulated. Add the necessary logic to kvm_skip_emulated_instruction() to synthesize an MTF VM-exit to L1 upon instruction emulation for L2. Fixes: 5f3d45e7f282 ("kvm/x86: add support for MONITOR_TRAP_FLAG") Signed-off-by: Oliver Upton <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-23KVM: fix error handling in svm_hardware_setupLi RongQing1-21/+20
rename svm_hardware_unsetup as svm_hardware_teardown, move it before svm_hardware_setup, and call it to free all memory if fail to setup in svm_hardware_setup, otherwise memory will be leaked remove __exit attribute for it since it is called in __init function Signed-off-by: Li RongQing <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: SVM: Fix potential memory leak in svm_cpu_init()Miaohe Lin1-7/+6
When kmalloc memory for sd->sev_vmcbs failed, we forget to free the page held by sd->save_area. Also get rid of the var r as '-ENOMEM' is actually the only possible outcome here. Reviewed-by: Liran Alon <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Miaohe Lin <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: apic: avoid calculating pending eoi from an uninitialized valMiaohe Lin1-1/+3
When pv_eoi_get_user() fails, 'val' may remain uninitialized and the return value of pv_eoi_get_pending() becomes random. Fix the issue by initializing the variable. Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Miaohe Lin <[email protected]> Cc: [email protected] Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: nVMX: clear PIN_BASED_POSTED_INTR from nested pinbased_ctls only when ↵Vitaly Kuznetsov4-11/+8
apicv is globally disabled When apicv is disabled on a vCPU (e.g. by enabling KVM_CAP_HYPERV_SYNIC*), nothing happens to VMX MSRs on the already existing vCPUs, however, all new ones are created with PIN_BASED_POSTED_INTR filtered out. This is very confusing and results in the following picture inside the guest: $ rdmsr -ax 0x48d ff00000016 7f00000016 7f00000016 7f00000016 This is observed with QEMU and 4-vCPU guest: QEMU creates vCPU0, does KVM_CAP_HYPERV_SYNIC2 and then creates the remaining three. L1 hypervisor may only check CPU0's controls to find out what features are available and it will be very confused later. Switch to setting PIN_BASED_POSTED_INTR control based on global 'enable_apicv' setting. Signed-off-by: Vitaly Kuznetsov <[email protected]> Cc: [email protected] Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: nVMX: handle nested posted interrupts when apicv is disabled for L1Vitaly Kuznetsov4-10/+17
Even when APICv is disabled for L1 it can (and, actually, is) still available for L2, this means we need to always call vmx_deliver_nested_posted_interrupt() when attempting an interrupt delivery. Suggested-by: Paolo Bonzini <[email protected]> Signed-off-by: Vitaly Kuznetsov <[email protected]> Cc: [email protected] Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21kvm: x86: svm: Fix NULL pointer dereference when AVIC not enabledSuravee Suthikulpanit1-0/+3
Launching VM w/ AVIC disabled together with pass-through device results in NULL pointer dereference bug with the following call trace. RIP: 0010:svm_refresh_apicv_exec_ctrl+0x17e/0x1a0 [kvm_amd] Call Trace: kvm_vcpu_update_apicv+0x44/0x60 [kvm] kvm_arch_vcpu_ioctl_run+0x3f4/0x1c80 [kvm] kvm_vcpu_ioctl+0x3d8/0x650 [kvm] do_vfs_ioctl+0xaa/0x660 ? tomoyo_file_ioctl+0x19/0x20 ksys_ioctl+0x67/0x90 __x64_sys_ioctl+0x1a/0x20 do_syscall_64+0x57/0x190 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Investigation shows that this is due to the uninitialized usage of struct vapu_svm.ir_list in the svm_set_pi_irte_mode(), which is called from svm_refresh_apicv_exec_ctrl(). The ir_list is initialized only if AVIC is enabled. So, fixes by adding a check if AVIC is enabled in the svm_refresh_apicv_exec_ctrl(). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=206579 Fixes: 8937d762396d ("kvm: x86: svm: Add support to (de)activate posted interrupts.") Signed-off-by: Suravee Suthikulpanit <[email protected]> Tested-by: Alex Williamson <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: VMX: Add VMX_FEATURE_USR_WAIT_PAUSEXiaoyao Li2-1/+2
Commit 159348784ff0 ("x86/vmx: Introduce VMX_FEATURES_*") missed bit 26 (enable user wait and pause) of Secondary Processor-based VM-Execution Controls. Add VMX_FEATURE_USR_WAIT_PAUSE flag so that it shows up in /proc/cpuinfo, and use it to define SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE to make them uniform. Signed-off-by: Xiaoyao Li <[email protected]> Reviewed-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: nVMX: Hold KVM's srcu lock when syncing vmcs12->shadowwanpeng li1-2/+9
For the duration of mapping eVMCS, it derefences ->memslots without holding ->srcu or ->slots_lock when accessing hv assist page. This patch fixes it by moving nested_sync_vmcs12_to_shadow to prepare_guest_switch, where the SRCU is already taken. It can be reproduced by running kvm's evmcs_test selftest. ============================= warning: suspicious rcu usage 5.6.0-rc1+ #53 tainted: g w ioe ----------------------------- ./include/linux/kvm_host.h:623 suspicious rcu_dereference_check() usage! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by evmcs_test/8507: #0: ffff9ddd156d00d0 (&vcpu->mutex){+.+.}, at: kvm_vcpu_ioctl+0x85/0x680 [kvm] stack backtrace: cpu: 6 pid: 8507 comm: evmcs_test tainted: g w ioe 5.6.0-rc1+ #53 hardware name: dell inc. optiplex 7040/0jctf8, bios 1.4.9 09/12/2016 call trace: dump_stack+0x68/0x9b kvm_read_guest_cached+0x11d/0x150 [kvm] kvm_hv_get_assist_page+0x33/0x40 [kvm] nested_enlightened_vmentry+0x2c/0x60 [kvm_intel] nested_vmx_handle_enlightened_vmptrld.part.52+0x32/0x1c0 [kvm_intel] nested_sync_vmcs12_to_shadow+0x439/0x680 [kvm_intel] vmx_vcpu_run+0x67a/0xe60 [kvm_intel] vcpu_enter_guest+0x35e/0x1bc0 [kvm] kvm_arch_vcpu_ioctl_run+0x40b/0x670 [kvm] kvm_vcpu_ioctl+0x370/0x680 [kvm] ksys_ioctl+0x235/0x850 __x64_sys_ioctl+0x16/0x20 do_syscall_64+0x77/0x780 entry_syscall_64_after_hwframe+0x49/0xbe Signed-off-by: Wanpeng Li <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-21KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOIMiaohe Lin1-1/+1
Commit 13db77347db1 ("KVM: x86: don't notify userspace IOAPIC on edge EOI") said, edge-triggered interrupts don't set a bit in TMR, which means that IOAPIC isn't notified on EOI. And var level indicates level-triggered interrupt. But commit 3159d36ad799 ("KVM: x86: use generic function for MSI parsing") replace var level with irq.level by mistake. Fix it by changing irq.level to irq.trig_mode. Cc: [email protected] Fixes: 3159d36ad799 ("KVM: x86: use generic function for MSI parsing") Signed-off-by: Miaohe Lin <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-20kvm/emulate: fix a -Werror=cast-function-typeQian Cai2-23/+26
arch/x86/kvm/emulate.c: In function 'x86_emulate_insn': arch/x86/kvm/emulate.c:5686:22: error: cast between incompatible function types from 'int (*)(struct x86_emulate_ctxt *)' to 'void (*)(struct fastop *)' [-Werror=cast-function-type] rc = fastop(ctxt, (fastop_t)ctxt->execute); Fix it by using an unnamed union of a (*execute) function pointer and a (*fastop) function pointer. Fixes: 3009afc6e39e ("KVM: x86: Use a typedef for fastop functions") Suggested-by: Paolo Bonzini <[email protected]> Signed-off-by: Qian Cai <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-20KVM: x86: fix incorrect comparison in trace eventPaolo Bonzini1-1/+1
The "u" field in the event has three states, -1/0/1. Using u8 however means that comparison with -1 will always fail, so change to signed char. Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-17KVM: nVMX: Fix some obsolete comments and grammar errorMiaohe Lin1-5/+5
Fix wrong variable names and grammar error in comment. Signed-off-by: Miaohe Lin <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-17KVM: x86: fix missing prototypesPaolo Bonzini1-0/+2
Reported with "make W=1" due to -Wmissing-prototypes. Reported-by: Qian Cai <[email protected]> Reviewed-by: Miaohe Lin <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12KVM: x86: enable -WerrorPaolo Bonzini1-0/+1
Avoid more embarrassing mistakes. At least those that the compiler can catch. Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: guest-halt-polling.txt convert to ReSTMauro Carvalho Chehab2-3/+10
Due to some merge conflict, this file ended being alone under Documentation/virtual. The file itself is almost at ReST format. Just minor adjustments are needed: - Adjust title markup; - Adjust a list identation; - add a literal block markup; - Add some blank lines. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: review-checklist.txt: rename to ReSTMauro Carvalho Chehab2-0/+5
This file is already in ReST compatible format. So, rename it and add to the kvm's index.rst. While here, use the standard conversion for document titles. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert timekeeping.txt to ReST formatMauro Carvalho Chehab2-95/+129
- Use document title and chapter markups; - Add markups for literal blocks; - Add markups for tables; - use :field: for field descriptions; - Add blank lines and adjust indentation. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert s390-diag.txt to ReST formatMauro Carvalho Chehab2-5/+9
This file is almost in ReST format. Just one change was needed: - Add markups for a literal block and change its indentation. While here, use the standard markup for the document title. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert ppc-pv.txt to ReST formatMauro Carvalho Chehab2-8/+19
- Use document title and chapter markups; - Add markups for tables; - Use list markups; - Add markups for literal blocks; - Add blank lines. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert nested-vmx.txt to ReST formatMauro Carvalho Chehab2-16/+22
This file is almost in ReST format. Just a small set of changes were needed: - Add markups for lists; - Add markups for a literal block; - Adjust whitespaces. While here, use the standard markup for the document title. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert mmu.txt to ReST formatMauro Carvalho Chehab2-14/+49
- Use document title and chapter markups; - Add markups for tables; - Add markups for literal blocks; - Add blank lines and adjust indentation. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert locking.txt to ReST formatMauro Carvalho Chehab3-215/+244
- Use document title and chapter markups; - Add markups for literal blocks; - use :field: for field descriptions; - Add blank lines and adjust indentation. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert hypercalls.txt to ReST formatMauro Carvalho Chehab2-56/+75
- Use document title and chapter markups; - Convert tables; - Add markups for literal blocks; - use :field: for field descriptions; - Add blank lines and adjust indentation Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: arm/psci.txt: convert to ReSTMauro Carvalho Chehab2-15/+32
- Add a title for the document; - Adjust whitespaces for it to be properly formatted after parsed. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert arm/hyp-abi.txt to ReSTMauro Carvalho Chehab2-9/+20
- Add proper markups for titles; - Adjust whitespaces and blank lines to match ReST needs; - Mark literal blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: Convert api.txt to ReST formatMauro Carvalho Chehab2-1387/+1964
convert api.txt document to ReST format while trying to keep its format as close as possible with the authors intent, and avoid adding uneeded markups. - Use document title and chapter markups; - Convert tables; - Add markups for literal blocks; - use :field: for field descriptions; - Add blank lines and adjust indentation Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/xive.txt to ReSTMauro Carvalho Chehab2-55/+98
- Use title markups; - adjust indentation and add blank lines as needed; - adjust tables to match ReST accepted formats; - mark code blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/xics.txt to ReSTMauro Carvalho Chehab2-6/+23
- Use title markups; - adjust indentation and add blank lines as needed; - adjust tables to match ReST accepted formats; - use :field: markups. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/vm.txt to ReSTMauro Carvalho Chehab2-80/+127
- Use title markups; - adjust indentation and add blank lines as needed; - use :field: markups; - Use cross-references; - mark code blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/vfio.txt to ReSTMauro Carvalho Chehab2-10/+16
- Use standard title markup; - adjust lists; - mark code blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/vcpu.txt to ReSTMauro Carvalho Chehab3-76/+115
- Use title markups; - adjust indentation and add blank lines as needed; - adjust tables to match ReST accepted formats; - use :field: markups; - mark code blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/s390_flic.txt to ReSTMauro Carvalho Chehab2-30/+41
- Use standard markup for document title; - Adjust indentation and add blank lines as needed; - use the notes markup; - mark code blocks as such. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/mpic.txt to ReSTMauro Carvalho Chehab2-3/+9
This document is almost in ReST format. The only thing needed is to mark a list as such and to add an extra whitespace. Yet, let's also use the standard document title markup, as it makes easier if anyone wants later to add sessions to it. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: convert devices/arm-vgit.txt to ReSTMauro Carvalho Chehab2-30/+60
- Use title markups; - change indent to match ReST syntax; - use proper table markups; - use literal block markups. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: devices/arm-vgit-v3.txt to ReSTMauro Carvalho Chehab2-46/+87
- Use title markups; - change indent to match ReST syntax; - use proper table markups; - use literal block markups. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: kvm: devices/arm-vgic-its.txt to ReST formatMauro Carvalho Chehab3-39/+78
- Fix document title to match ReST format - Convert the table to be properly recognized - use proper markups for literal blocks - Some indentation fixes to match ReST While here, add an index for kvm devices. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: Convert msr.txt to ReST formatMauro Carvalho Chehab2-55/+93
- Use document title markup; - Convert tables; - Add blank lines and adjust indentation. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: convert halt-polling.txt to ReST formatMauro Carvalho Chehab2-43/+48
- Fix document title to match ReST format - Convert the table to be properly recognized - Some indentation fixes to match ReST syntax. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: user_mode_linux.rst: fix URL referencesMauro Carvalho Chehab1-42/+29
Several URLs are pointing to outdated places. Update the references for the URLs whose contents still exists, removing the others. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: user_mode_linux.rst: update compiling instructionsMauro Carvalho Chehab1-53/+9
Instead of pointing for a pre-2.4 and a seaparate patch, update it to match current upstream, as UML was merged a long time ago. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
2020-02-12docs: virt: convert UML documentation to ReSTMauro Carvalho Chehab2-915/+787
Despite being an old document, it contains lots of information that could still be useful. The document has a nice style with makes easy to convert to ReST. So, let's convert it to ReST. This patch does: - Use proper markups for titles; - Mark and proper indent literal blocks; - don't use an 'o' character for lists; - other minor changes required for the doc to be parsed. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
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