diff mbox series

[v4,09/18] x86/sev: Initialize VGIF for secondary VCPUs for Secure AVIC

Message ID 20250417091708.215826-10-Neeraj.Upadhyay@amd.com (mailing list archive)
State New
Headers show
Series AMD: Add Secure AVIC Guest Support | expand

Commit Message

Neeraj Upadhyay April 17, 2025, 9:16 a.m. UTC 
From: Kishon Vijay Abraham I <kvijayab@amd.com>

Secure AVIC requires VGIF to be configured in VMSA. Configure
for secondary vCPUs (the configuration for boot CPU is done by
the hypervisor).

Signed-off-by: Kishon Vijay Abraham I <kvijayab@amd.com>
Signed-off-by: Neeraj Upadhyay <Neeraj.Upadhyay@amd.com>
---
Changes since v3:

 - No change.

 arch/x86/coco/sev/core.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/arch/x86/coco/sev/core.c b/arch/x86/coco/sev/core.c
index aa335e0862eb..7bc0c036b4d7 100644
--- a/arch/x86/coco/sev/core.c
+++ b/arch/x86/coco/sev/core.c
@@ -1188,6 +1188,9 @@  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;