From: Tom Lendacky <[email protected]> Implement a handler for #VC exceptions caused by WBINVD instructions.
Signed-off-by: Tom Lendacky <[email protected]> [ [email protected]: Adapt to #VC handling framework ] Co-developed-by: Joerg Roedel <[email protected]> Signed-off-by: Joerg Roedel <[email protected]> --- arch/x86/kernel/sev-es.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c index fcd67ab04d2d..491537b770fd 100644 --- a/arch/x86/kernel/sev-es.c +++ b/arch/x86/kernel/sev-es.c @@ -266,6 +266,12 @@ static enum es_result handle_dr7_read(struct ghcb *ghcb, return ES_OK; } +static enum es_result handle_wbinvd(struct ghcb *ghcb, + struct es_em_ctxt *ctxt) +{ + return ghcb_hv_call(ghcb, ctxt, SVM_EXIT_WBINVD, 0, 0); +} + static enum es_result handle_vc_exception(struct es_em_ctxt *ctxt, struct ghcb *ghcb, unsigned long exit_code, @@ -289,6 +295,9 @@ static enum es_result handle_vc_exception(struct es_em_ctxt *ctxt, case SVM_EXIT_MSR: result = handle_msr(ghcb, ctxt); break; + case SVM_EXIT_WBINVD: + result = handle_wbinvd(ghcb, ctxt); + break; case SVM_EXIT_NPF: result = handle_mmio(ghcb, ctxt); break; -- 2.17.1 _______________________________________________ Virtualization mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/virtualization
