[RFC 09/14] x86/sev: Initialize VGIF for secondary VCPUs for Secure AVIC
From: Neeraj Upadhyay
Date: Fri Sep 13 2024 - 07:40:18 EST
From: Kishon Vijay Abraham I <kvijayab@xxxxxxx>
VINTR_CTRL in VMSA should be configured for Secure AVIC. Configure
for secondary vCPUs (the configuration for boot CPU is done in
hypervisor).
Signed-off-by: Kishon Vijay Abraham I <kvijayab@xxxxxxx>
Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@xxxxxxx>
---
arch/x86/coco/sev/core.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
index 63ecab60cab7..3c832c9befab 100644
--- a/arch/x86/coco/sev/core.c
+++ b/arch/x86/coco/sev/core.c
@@ -1190,6 +1190,9 @@ static int wakeup_cpu_via_vmgexit(u32 apic_id, unsigned long start_ip)
vmsa->x87_ftw = AP_INIT_X87_FTW_DEFAULT;
vmsa->x87_fcw = AP_INIT_X87_FCW_DEFAULT;
+ if (cc_platform_has(CC_ATTR_SNP_SECURE_AVIC))
+ vmsa->vintr_ctrl |= V_GIF_MASK;
+
/* SVME must be set. */
vmsa->efer = EFER_SVME;
--
2.34.1