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Date: Tue, 28 Apr 2020 17:17:08 +0200 From: Joerg Roedel <joro@...tes.org> To: x86@...nel.org Cc: hpa@...or.com, Andy Lutomirski <luto@...nel.org>, Dave Hansen <dave.hansen@...ux.intel.com>, Peter Zijlstra <peterz@...radead.org>, Thomas Hellstrom <thellstrom@...are.com>, Jiri Slaby <jslaby@...e.cz>, Dan Williams <dan.j.williams@...el.com>, Tom Lendacky <thomas.lendacky@....com>, Juergen Gross <jgross@...e.com>, Kees Cook <keescook@...omium.org>, David Rientjes <rientjes@...gle.com>, Cfir Cohen <cfir@...gle.com>, Erdem Aktas <erdemaktas@...gle.com>, Masami Hiramatsu <mhiramat@...nel.org>, Mike Stunes <mstunes@...are.com>, Joerg Roedel <joro@...tes.org>, Joerg Roedel <jroedel@...e.de>, linux-kernel@...r.kernel.org, kvm@...r.kernel.org, virtualization@...ts.linux-foundation.org Subject: [PATCH v3 58/75] x86/sev-es: Handle INVD Events From: Tom Lendacky <thomas.lendacky@....com> Implement a handler for #VC exceptions caused by INVD instructions. Since Linux should never use INVD, just mark it as unsupported. Signed-off-by: Tom Lendacky <thomas.lendacky@....com> [ jroedel@...e.de: Adapt to #VC handling infrastructure ] Co-developed-by: Joerg Roedel <jroedel@...e.de> Signed-off-by: Joerg Roedel <jroedel@...e.de> --- arch/x86/kernel/sev-es.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/kernel/sev-es.c b/arch/x86/kernel/sev-es.c index eb158781238b..601554e6360f 100644 --- a/arch/x86/kernel/sev-es.c +++ b/arch/x86/kernel/sev-es.c @@ -844,6 +844,10 @@ static enum es_result vc_handle_exitcode(struct es_em_ctxt *ctxt, case SVM_EXIT_RDPMC: result = vc_handle_rdpmc(ghcb, ctxt); break; + case SVM_EXIT_INVD: + pr_err_ratelimited("#VC exception for INVD??? Seriously???\n"); + result = ES_UNSUPPORTED; + break; case SVM_EXIT_CPUID: result = vc_handle_cpuid(ghcb, ctxt); break; -- 2.17.1
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