From: Vladimir Murzin <vladimir.murzin@xxxxxxx>
After commit b34f2bc ("arm64: KVM: Make ICC_SRE_EL1 access return the
configured SRE value") we report SRE value to 64-bit guest, but 32-bit
one still handled as RAZ/WI what leads to funny promise we do not keep:
"GICv3: GIC: unable to set SRE (disabled at EL2), panic ahead"
Instead, return the actual value of the ICC_SRE_EL1 register that the
guest should see.
[ Tweaked commit message - Christoffer ]
Signed-off-by: Vladimir Murzin <vladimir.murzin@xxxxxxx>
Acked-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Signed-off-by: Christoffer Dall <christoffer.dall@xxxxxxxxxx>
---
arch/arm64/kvm/sys_regs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c
index af5ea86..e51367d 100644
--- a/arch/arm64/kvm/sys_regs.c
+++ b/arch/arm64/kvm/sys_regs.c
@@ -1352,7 +1352,7 @@ static const struct sys_reg_desc cp15_regs[] = {
{ Op1( 0), CRn(10), CRm( 3), Op2( 1), access_vm_reg, NULL, c10_AMAIR1 },
/* ICC_SRE */
- { Op1( 0), CRn(12), CRm(12), Op2( 5), trap_raz_wi },
+ { Op1( 0), CRn(12), CRm(12), Op2( 5), access_gic_sre },
{ Op1( 0), CRn(13), CRm( 0), Op2( 1), access_vm_reg, NULL, c13_CID },
--
2.9.0
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