diff options
| author | Tom Lendacky <[email protected]> | 2020-09-07 15:15:59 +0200 |
|---|---|---|
| committer | Borislav Petkov <[email protected]> | 2020-09-09 11:33:20 +0200 |
| commit | ded476bbe203e59cb571d6c576f680efe4a0ddff (patch) | |
| tree | 2ae890a5dfe6673e7e7329d66f5e38a2e5c0f013 | |
| parent | 0c2fd2ef64ef1a91d81c2f61309735ac438b68a4 (diff) | |
x86/sev-es: Handle MWAIT/MWAITX Events
Implement a handler for #VC exceptions caused by MWAIT and MWAITX
instructions.
Signed-off-by: Tom Lendacky <[email protected]>
[ [email protected]: Adapt to #VC handling infrastructure ]
Co-developed-by: Joerg Roedel <[email protected]>
Signed-off-by: Joerg Roedel <[email protected]>
Signed-off-by: Borislav Petkov <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
| -rw-r--r-- | arch/x86/kernel/sev-es.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c index b9976e710d77..2aea903ceb42 100644 --- a/arch/x86/kernel/sev-es.c +++ b/arch/x86/kernel/sev-es.c @@ -882,6 +882,13 @@ static enum es_result vc_handle_monitor(struct ghcb *ghcb, return ES_OK; } +static enum es_result vc_handle_mwait(struct ghcb *ghcb, + struct es_em_ctxt *ctxt) +{ + /* Treat the same as MONITOR/MONITORX */ + return ES_OK; +} + static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, struct ghcb *ghcb, unsigned long exit_code) @@ -921,6 +928,9 @@ static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, case SVM_EXIT_MONITOR: result = vc_handle_monitor(ghcb, ctxt); break; + case SVM_EXIT_MWAIT: + result = vc_handle_mwait(ghcb, ctxt); + break; case SVM_EXIT_NPF: result = vc_handle_mmio(ghcb, ctxt); break; |