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x86/sev: Enable NMI support for Secure AVIC

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Now that support to send NMI IPI and support to inject NMI from the hypervisor
has been added, set V_NMI_ENABLE in the VINTR_CTRL field of the VMSA to enable
NMI for Secure AVIC guests.

  [ bp: Zap useless brackets. ]

Signed-off-by: Kishon Vijay Abraham I <kvijayab@amd.com>
Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Tianyu Lan <tiala@microsoft.com>
Link: https://lore.kernel.org/20250828111315.208959-1-Neeraj.Upadhyay@amd.com
This commit is contained in:
Kishon Vijay Abraham I 2025-08-28 16:43:15 +05:30 committed by Borislav Petkov (AMD)
parent 869e36b966
commit 28bbfad229
1 changed files with 1 additions and 1 deletions
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2
arch/x86/coco/sev/core.c
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@ -975,7 +975,7 @@ static int wakeup_cpu_via_vmgexit(u32 apic_id, unsigned long start_ip, unsigned
vmsa->x87_fcw = AP_INIT_X87_FCW_DEFAULT;
if (cc_platform_has(CC_ATTR_SNP_SECURE_AVIC))
vmsa->vintr_ctrl |= V_GIF_MASK;
vmsa->vintr_ctrl |= V_GIF_MASK | V_NMI_ENABLE_MASK;
/* SVME must be set. */
vmsa->efer = EFER_SVME;