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-rw-r--r--arch/powerpc/boot/Makefile2
-rw-r--r--arch/powerpc/include/asm/book3s/32/kup.h1
-rw-r--r--arch/powerpc/include/asm/book3s/64/tlbflush-radix.h4
-rw-r--r--arch/powerpc/include/asm/elf.h3
-rw-r--r--arch/powerpc/kernel/prom_init.c13
-rw-r--r--arch/powerpc/kernel/prom_init_check.sh3
-rw-r--r--arch/powerpc/kvm/book3s.c8
-rw-r--r--arch/powerpc/kvm/book3s_hv_rmhandlers.S1
-rw-r--r--arch/powerpc/kvm/book3s_xive.c24
-rw-r--r--arch/powerpc/kvm/book3s_xive.h12
-rw-r--r--arch/powerpc/kvm/book3s_xive_native.c6
-rw-r--r--arch/powerpc/net/bpf_jit_comp64.c13
-rw-r--r--arch/powerpc/platforms/cell/spufs/inode.c1
-rw-r--r--arch/powerpc/platforms/powernv/eeh-powernv.c2
-rw-r--r--arch/powerpc/platforms/powernv/smp.c53
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c3
16 files changed, 116 insertions, 33 deletions
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 6841bd52738b..dfbd7f22eef5 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -50,7 +50,7 @@ endif
BOOTAFLAGS := -D__ASSEMBLY__ $(BOOTCFLAGS) -nostdinc
-BOOTARFLAGS := -cr$(KBUILD_ARFLAGS)
+BOOTARFLAGS := -crD
ifdef CONFIG_CC_IS_CLANG
BOOTCFLAGS += $(CLANG_FLAGS)
diff --git a/arch/powerpc/include/asm/book3s/32/kup.h b/arch/powerpc/include/asm/book3s/32/kup.h
index 677e9babef80..f9dc597b0b86 100644
--- a/arch/powerpc/include/asm/book3s/32/kup.h
+++ b/arch/powerpc/include/asm/book3s/32/kup.h
@@ -91,6 +91,7 @@
static inline void kuap_update_sr(u32 sr, u32 addr, u32 end)
{
+ addr &= 0xf0000000; /* align addr to start of segment */
barrier(); /* make sure thread.kuap is updated before playing with SRs */
while (addr < end) {
mtsrin(sr, addr);
diff --git a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
index 4ce795d30377..ca8db193ae38 100644
--- a/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
+++ b/arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
@@ -35,6 +35,10 @@ static inline void radix__flush_all_lpid(unsigned int lpid)
{
WARN_ON(1);
}
+static inline void radix__flush_all_lpid_guest(unsigned int lpid)
+{
+ WARN_ON(1);
+}
#endif
extern void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma,
diff --git a/arch/powerpc/include/asm/elf.h b/arch/powerpc/include/asm/elf.h
index 409c9bfb43d9..57c229a86f08 100644
--- a/arch/powerpc/include/asm/elf.h
+++ b/arch/powerpc/include/asm/elf.h
@@ -175,4 +175,7 @@ do { \
ARCH_DLINFO_CACHE_GEOMETRY; \
} while (0)
+/* Relocate the kernel image to @final_address */
+void relocate(unsigned long final_address);
+
#endif /* _ASM_POWERPC_ELF_H */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index a4e7762dd286..100f1b57ec2f 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -3249,7 +3249,20 @@ static void setup_secure_guest(unsigned long kbase, unsigned long fdt)
/* Switch to secure mode. */
prom_printf("Switching to secure mode.\n");
+ /*
+ * The ultravisor will do an integrity check of the kernel image but we
+ * relocated it so the check will fail. Restore the original image by
+ * relocating it back to the kernel virtual base address.
+ */
+ if (IS_ENABLED(CONFIG_RELOCATABLE))
+ relocate(KERNELBASE);
+
ret = enter_secure_mode(kbase, fdt);
+
+ /* Relocate the kernel again. */
+ if (IS_ENABLED(CONFIG_RELOCATABLE))
+ relocate(kbase);
+
if (ret != U_SUCCESS) {
prom_printf("Returned %d from switching to secure mode.\n", ret);
prom_rtas_os_term("Switch to secure mode failed.\n");
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index 78bab17b1396..b183ab9c5107 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -26,7 +26,8 @@ _end enter_prom $MEM_FUNCS reloc_offset __secondary_hold
__secondary_hold_acknowledge __secondary_hold_spinloop __start
logo_linux_clut224 btext_prepare_BAT
reloc_got2 kernstart_addr memstart_addr linux_banner _stext
-__prom_init_toc_start __prom_init_toc_end btext_setup_display TOC."
+__prom_init_toc_start __prom_init_toc_end btext_setup_display TOC.
+relocate"
NM="$1"
OBJ="$2"
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index d7fcdfa7fee4..ec2547cc5ecb 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -36,8 +36,8 @@
#include "book3s.h"
#include "trace.h"
-#define VM_STAT(x) offsetof(struct kvm, stat.x), KVM_STAT_VM
-#define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
+#define VM_STAT(x, ...) offsetof(struct kvm, stat.x), KVM_STAT_VM, ## __VA_ARGS__
+#define VCPU_STAT(x, ...) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU, ## __VA_ARGS__
/* #define EXIT_DEBUG */
@@ -69,8 +69,8 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "pthru_all", VCPU_STAT(pthru_all) },
{ "pthru_host", VCPU_STAT(pthru_host) },
{ "pthru_bad_aff", VCPU_STAT(pthru_bad_aff) },
- { "largepages_2M", VM_STAT(num_2M_pages) },
- { "largepages_1G", VM_STAT(num_1G_pages) },
+ { "largepages_2M", VM_STAT(num_2M_pages, .mode = 0444) },
+ { "largepages_1G", VM_STAT(num_1G_pages, .mode = 0444) },
{ NULL }
};
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 74a9cfe84aee..faebcbb8c4db 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -1921,6 +1921,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
mtspr SPRN_PCR, r6
18:
/* Signal secondary CPUs to continue */
+ li r0, 0
stb r0,VCORE_IN_GUEST(r5)
19: lis r8,0x7fff /* MAX_INT@h */
mtspr SPRN_HDEC,r8
diff --git a/arch/powerpc/kvm/book3s_xive.c b/arch/powerpc/kvm/book3s_xive.c
index 591bfb4bfd0f..a3f9c665bb5b 100644
--- a/arch/powerpc/kvm/book3s_xive.c
+++ b/arch/powerpc/kvm/book3s_xive.c
@@ -1217,6 +1217,7 @@ int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
struct kvmppc_xive *xive = dev->private;
struct kvmppc_xive_vcpu *xc;
int i, r = -EBUSY;
+ u32 vp_id;
pr_devel("connect_vcpu(cpu=%d)\n", cpu);
@@ -1228,25 +1229,32 @@ int kvmppc_xive_connect_vcpu(struct kvm_device *dev,
return -EPERM;
if (vcpu->arch.irq_type != KVMPPC_IRQ_DEFAULT)
return -EBUSY;
- if (kvmppc_xive_find_server(vcpu->kvm, cpu)) {
- pr_devel("Duplicate !\n");
- return -EEXIST;
- }
if (cpu >= (KVM_MAX_VCPUS * vcpu->kvm->arch.emul_smt_mode)) {
pr_devel("Out of bounds !\n");
return -EINVAL;
}
- xc = kzalloc(sizeof(*xc), GFP_KERNEL);
- if (!xc)
- return -ENOMEM;
/* We need to synchronize with queue provisioning */
mutex_lock(&xive->lock);
+
+ vp_id = kvmppc_xive_vp(xive, cpu);
+ if (kvmppc_xive_vp_in_use(xive->kvm, vp_id)) {
+ pr_devel("Duplicate !\n");
+ r = -EEXIST;
+ goto bail;
+ }
+
+ xc = kzalloc(sizeof(*xc), GFP_KERNEL);
+ if (!xc) {
+ r = -ENOMEM;
+ goto bail;
+ }
+
vcpu->arch.xive_vcpu = xc;
xc->xive = xive;
xc->vcpu = vcpu;
xc->server_num = cpu;
- xc->vp_id = kvmppc_xive_vp(xive, cpu);
+ xc->vp_id = vp_id;
xc->mfrr = 0xff;
xc->valid = true;
diff --git a/arch/powerpc/kvm/book3s_xive.h b/arch/powerpc/kvm/book3s_xive.h
index 955b820ffd6d..fe3ed50e0818 100644
--- a/arch/powerpc/kvm/book3s_xive.h
+++ b/arch/powerpc/kvm/book3s_xive.h
@@ -220,6 +220,18 @@ static inline u32 kvmppc_xive_vp(struct kvmppc_xive *xive, u32 server)
return xive->vp_base + kvmppc_pack_vcpu_id(xive->kvm, server);
}
+static inline bool kvmppc_xive_vp_in_use(struct kvm *kvm, u32 vp_id)
+{
+ struct kvm_vcpu *vcpu = NULL;
+ int i;
+
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ if (vcpu->arch.xive_vcpu && vp_id == vcpu->arch.xive_vcpu->vp_id)
+ return true;
+ }
+ return false;
+}
+
/*
* Mapping between guest priorities and host priorities
* is as follow.
diff --git a/arch/powerpc/kvm/book3s_xive_native.c b/arch/powerpc/kvm/book3s_xive_native.c
index 248c1ea9e788..78b906ffa0d2 100644
--- a/arch/powerpc/kvm/book3s_xive_native.c
+++ b/arch/powerpc/kvm/book3s_xive_native.c
@@ -106,6 +106,7 @@ int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
struct kvmppc_xive *xive = dev->private;
struct kvmppc_xive_vcpu *xc = NULL;
int rc;
+ u32 vp_id;
pr_devel("native_connect_vcpu(server=%d)\n", server_num);
@@ -124,7 +125,8 @@ int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
mutex_lock(&xive->lock);
- if (kvmppc_xive_find_server(vcpu->kvm, server_num)) {
+ vp_id = kvmppc_xive_vp(xive, server_num);
+ if (kvmppc_xive_vp_in_use(xive->kvm, vp_id)) {
pr_devel("Duplicate !\n");
rc = -EEXIST;
goto bail;
@@ -141,7 +143,7 @@ int kvmppc_xive_native_connect_vcpu(struct kvm_device *dev,
xc->vcpu = vcpu;
xc->server_num = server_num;
- xc->vp_id = kvmppc_xive_vp(xive, server_num);
+ xc->vp_id = vp_id;
xc->valid = true;
vcpu->arch.irq_type = KVMPPC_IRQ_XIVE;
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 02a59946a78a..be3517ef0574 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -1142,6 +1142,19 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
}
/*
+ * If we have seen a tail call, we need a second pass.
+ * This is because bpf_jit_emit_common_epilogue() is called
+ * from bpf_jit_emit_tail_call() with a not yet stable ctx->seen.
+ */
+ if (cgctx.seen & SEEN_TAILCALL) {
+ cgctx.idx = 0;
+ if (bpf_jit_build_body(fp, 0, &cgctx, addrs, false)) {
+ fp = org_fp;
+ goto out_addrs;
+ }
+ }
+
+ /*
* Pretend to build prologue, given the features we've seen. This will
* update ctgtx.idx as it pretends to output instructions, then we can
* calculate total size from idx.
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 1d93e55a2de1..2dd452a047cd 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -761,6 +761,7 @@ static int spufs_init_fs_context(struct fs_context *fc)
ctx->gid = current_gid();
ctx->mode = 0755;
+ fc->fs_private = ctx;
fc->s_fs_info = sbi;
fc->ops = &spufs_context_ops;
return 0;
diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c
index 6bc24a47e9ef..6f300ab7f0e9 100644
--- a/arch/powerpc/platforms/powernv/eeh-powernv.c
+++ b/arch/powerpc/platforms/powernv/eeh-powernv.c
@@ -42,7 +42,7 @@ void pnv_pcibios_bus_add_device(struct pci_dev *pdev)
{
struct pci_dn *pdn = pci_get_pdn(pdev);
- if (eeh_has_flag(EEH_FORCE_DISABLED))
+ if (!pdn || eeh_has_flag(EEH_FORCE_DISABLED))
return;
dev_dbg(&pdev->dev, "EEH: Setting up device\n");
diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
index fbd6e6b7bbf2..13e251699346 100644
--- a/arch/powerpc/platforms/powernv/smp.c
+++ b/arch/powerpc/platforms/powernv/smp.c
@@ -146,20 +146,25 @@ static int pnv_smp_cpu_disable(void)
return 0;
}
+static void pnv_flush_interrupts(void)
+{
+ if (cpu_has_feature(CPU_FTR_ARCH_300)) {
+ if (xive_enabled())
+ xive_flush_interrupt();
+ else
+ icp_opal_flush_interrupt();
+ } else {
+ icp_native_flush_interrupt();
+ }
+}
+
static void pnv_smp_cpu_kill_self(void)
{
+ unsigned long srr1, unexpected_mask, wmask;
unsigned int cpu;
- unsigned long srr1, wmask;
u64 lpcr_val;
/* Standard hot unplug procedure */
- /*
- * This hard disables local interurpts, ensuring we have no lazy
- * irqs pending.
- */
- WARN_ON(irqs_disabled());
- hard_irq_disable();
- WARN_ON(lazy_irq_pending());
idle_task_exit();
current->active_mm = NULL; /* for sanity */
@@ -173,6 +178,27 @@ static void pnv_smp_cpu_kill_self(void)
wmask = SRR1_WAKEMASK_P8;
/*
+ * This turns the irq soft-disabled state we're called with, into a
+ * hard-disabled state with pending irq_happened interrupts cleared.
+ *
+ * PACA_IRQ_DEC - Decrementer should be ignored.
+ * PACA_IRQ_HMI - Can be ignored, processing is done in real mode.
+ * PACA_IRQ_DBELL, EE, PMI - Unexpected.
+ */
+ hard_irq_disable();
+ if (generic_check_cpu_restart(cpu))
+ goto out;
+
+ unexpected_mask = ~(PACA_IRQ_DEC | PACA_IRQ_HMI | PACA_IRQ_HARD_DIS);
+ if (local_paca->irq_happened & unexpected_mask) {
+ if (local_paca->irq_happened & PACA_IRQ_EE)
+ pnv_flush_interrupts();
+ DBG("CPU%d Unexpected exit while offline irq_happened=%lx!\n",
+ cpu, local_paca->irq_happened);
+ }
+ local_paca->irq_happened = PACA_IRQ_HARD_DIS;
+
+ /*
* We don't want to take decrementer interrupts while we are
* offline, so clear LPCR:PECE1. We keep PECE2 (and
* LPCR_PECE_HVEE on P9) enabled so as to let IPIs in.
@@ -197,6 +223,7 @@ static void pnv_smp_cpu_kill_self(void)
srr1 = pnv_cpu_offline(cpu);
+ WARN_ON_ONCE(!irqs_disabled());
WARN_ON(lazy_irq_pending());
/*
@@ -212,13 +239,7 @@ static void pnv_smp_cpu_kill_self(void)
*/
if (((srr1 & wmask) == SRR1_WAKEEE) ||
((srr1 & wmask) == SRR1_WAKEHVI)) {
- if (cpu_has_feature(CPU_FTR_ARCH_300)) {
- if (xive_enabled())
- xive_flush_interrupt();
- else
- icp_opal_flush_interrupt();
- } else
- icp_native_flush_interrupt();
+ pnv_flush_interrupts();
} else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
@@ -266,7 +287,7 @@ static void pnv_smp_cpu_kill_self(void)
*/
lpcr_val = mfspr(SPRN_LPCR) | (u64)LPCR_PECE1;
pnv_program_cpu_hotplug_lpcr(cpu, lpcr_val);
-
+out:
DBG("CPU%d coming online...\n", cpu);
}
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index b53359258d99..f87a5c64e24d 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -1419,6 +1419,9 @@ void __init pseries_lpar_read_hblkrm_characteristics(void)
unsigned char local_buffer[SPLPAR_TLB_BIC_MAXLENGTH];
int call_status, len, idx, bpsize;
+ if (!firmware_has_feature(FW_FEATURE_BLOCK_REMOVE))
+ return;
+
spin_lock(&rtas_data_buf_lock);
memset(rtas_data_buf, 0, RTAS_DATA_BUF_SIZE);
call_status = rtas_call(rtas_token("ibm,get-system-parameter"), 3, 1,
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