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[v1,2/6] KVM: arm64: Add bit masks for HAFGRTR_EL2

Message ID 20231205102248.1915895-3-tabba@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: arm64: Fixes to fine grain traps and pKVM traps | expand

Commit Message

Fuad Tabba Dec. 5, 2023, 10:22 a.m. UTC 
The HAFGRTR_EL2 register isn't used yet, but it will be in future
patches. It's also the only FGT register remaining (not including
FGT2 registers).

Add the masks for completeness and future patches. The definition
is from the latest Arm Architecture System Registers xml
specification [*].

[*] https://developer.arm.com/downloads/-/exploration-tools

Signed-off-by: Fuad Tabba <tabba@google.com>
---
 arch/arm64/include/asm/kvm_arm.h | 4 ++++
 1 file changed, 4 insertions(+)
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Patch

diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h
index b1061647e837..b0dc3249d5cd 100644
--- a/arch/arm64/include/asm/kvm_arm.h
+++ b/arch/arm64/include/asm/kvm_arm.h
@@ -379,6 +379,10 @@ 
 				 GENMASK(8, 7) | GENMASK(5, 0))
 #define __HDFGWTR_EL2_nMASK	GENMASK(62, 60)
 
+#define __HAFGRTR_EL2_RES0	(GENMASK(63, 50) | GENMASK(16, 5))
+#define __HAFGRTR_EL2_MASK	(GENMASK(49, 17) | GENMASK(4, 0))
+#define __HAFGRTR_EL2_nMASK	0UL
+
 /* Similar definitions for HCRX_EL2 */
 #define __HCRX_EL2_RES0         (GENMASK(63, 25) | GENMASK(13, 12))
 #define __HCRX_EL2_MASK		(BIT(6))