bybrooklyn/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-04-18 06:44:00 -04:00
Code Issues Packages Projects Releases Wiki Activity

KVM: arm64: gic-v5: Support GICv5 FGTs & FGUs

Browse Source 
Extend the existing FGT/FGU infrastructure to include the GICv5 trap
registers (ICH_HFGRTR_EL2, ICH_HFGWTR_EL2, ICH_HFGITR_EL2). This
involves mapping the trap registers and their bits to the
corresponding feature that introduces them (FEAT_GCIE for all, in this
case), and mapping each trap bit to the system register/instruction
controlled by it.

As of this change, none of the GICv5 instructions or register accesses
are being trapped.

Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Link: https://patch.msgid.link/20260319154937.3619520-14-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
This commit is contained in:
Sascha Bischoff
2026-03-19 15:53:05 +00:00
committed by Marc Zyngier
parent a258a383b9
commit 9d6d9514c0
8 changed files with 215 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
arch/arm64/include/asm/vncr_mapping.h
View File

@@ -108,5 +108,8 @@
#define VNCR_MPAMVPM5_EL2 0x968
#define VNCR_MPAMVPM6_EL2 0x970
#define VNCR_MPAMVPM7_EL2 0x978
#define VNCR_ICH_HFGITR_EL2 0xB10
#define VNCR_ICH_HFGRTR_EL2 0xB18
#define VNCR_ICH_HFGWTR_EL2 0xB20
#endif /* __ARM64_VNCR_MAPPING_H__ */