diff options
| author | Tom Lendacky <thomas.lendacky@amd.com> | 2020-09-07 15:15:54 +0200 |
|---|---|---|
| committer | Borislav Petkov <bp@suse.de> | 2020-09-09 11:33:20 +0200 |
| commit | a14a92fc4b420ae6713800a8ae8c3686c1a1fa20 (patch) | |
| tree | bde8879375f6072425ec976c0af2677be6867228 /arch/x86/kernel/sev-es.c | |
| parent | 479a7bf5c1f7f14eb37c6d6aeb401562efc1fcad (diff) | |
x86/sev-es: Handle WBINVD Events
Implement a handler for #VC exceptions caused by WBINVD instructions.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
[ jroedel@suse.de: Adapt to #VC handling framework ]
Co-developed-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200907131613.12703-54-joro@8bytes.org
Diffstat (limited to 'arch/x86/kernel/sev-es.c')
| -rw-r--r-- | arch/x86/kernel/sev-es.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c index 391b9c7f7312..aba27c3c1633 100644 --- a/arch/x86/kernel/sev-es.c +++ b/arch/x86/kernel/sev-es.c @@ -847,6 +847,12 @@ static enum es_result vc_handle_dr7_read(struct ghcb *ghcb, return ES_OK; } +static enum es_result vc_handle_wbinvd(struct ghcb *ghcb, + struct es_em_ctxt *ctxt) +{ + return sev_es_ghcb_hv_call(ghcb, ctxt, SVM_EXIT_WBINVD, 0, 0); +} + static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, struct ghcb *ghcb, unsigned long exit_code) @@ -869,6 +875,9 @@ static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, case SVM_EXIT_MSR: result = vc_handle_msr(ghcb, ctxt); break; + case SVM_EXIT_WBINVD: + result = vc_handle_wbinvd(ghcb, ctxt); + break; case SVM_EXIT_NPF: result = vc_handle_mmio(ghcb, ctxt); break; |