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sev/i386: Require in-kernel irqchip support for SEV-ES guests

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In prep for AP booting, require the use of in-kernel irqchip support. This
lessens the Qemu support burden required to boot APs.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Richard Henderson <richard.henderson@linaro.org>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Reviewed-by: Venu Busireddy <venu.busireddy@oracle.com>
Message-Id: <e9aec5941e613456f0757f5a73869cdc5deea105.1611682609.git.thomas.lendacky@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Tom Lendacky 2021-01-26 11:36:45 -06:00 committed by Paolo Bonzini
parent 6b98e96f18
commit 9681f8677f
1 changed files with 6 additions and 0 deletions
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6
target/i386/sev.c
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@ -753,6 +753,12 @@ int sev_kvm_init(ConfidentialGuestSupport *cgs, Error **errp)
sev->api_minor = status.api_minor;
if (sev_es_enabled()) {
if (!kvm_kernel_irqchip_allowed()) {
error_report("%s: SEV-ES guests require in-kernel irqchip support",
__func__);
goto err;
}
if (!(status.flags & SEV_STATUS_FLAGS_CONFIG_ES)) {
error_report("%s: guest policy requires SEV-ES, but "
"host SEV-ES support unavailable",