diff options
| author | Marc Zyngier <maz@kernel.org> | 2025-05-14 11:34:52 +0100 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2025-05-19 08:01:19 +0100 |
| commit | 069a05e53549685d2b5e54ceb51db1fd04aa50d7 (patch) | |
| tree | dead494294ea864921eb25170df8648c7746278e /arch/arm64/include/asm/esr.h | |
| parent | 6fb75733f148ecd6c1898df0098b37f70a80f002 (diff) | |
KVM: arm64: nv: Handle VNCR_EL2-triggered faults
As VNCR_EL2.BADDR contains a VA, it is bound to trigger faults.
These faults can have multiple source:
- We haven't mapped anything on the host: we need to compute the
resulting translation, populate a TLB, and eventually map
the corresponding page
- The permissions are out of whack: we need to tell the guest about
this state of affairs
Note that the kernel doesn't support S1POE for itself yet, so
the particular case of a VNCR page mapped with no permissions
or with write-only permissions is not correctly handled yet.
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20250514103501.2225951-10-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'arch/arm64/include/asm/esr.h')
| -rw-r--r-- | arch/arm64/include/asm/esr.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h index e4f77757937e..fb4e119e1aaf 100644 --- a/arch/arm64/include/asm/esr.h +++ b/arch/arm64/include/asm/esr.h @@ -99,6 +99,8 @@ #define ESR_ELx_AET_CE (UL(6) << ESR_ELx_AET_SHIFT) /* Shared ISS field definitions for Data/Instruction aborts */ +#define ESR_ELx_VNCR_SHIFT (13) +#define ESR_ELx_VNCR (UL(1) << ESR_ELx_VNCR_SHIFT) #define ESR_ELx_SET_SHIFT (11) #define ESR_ELx_SET_MASK (UL(3) << ESR_ELx_SET_SHIFT) #define ESR_ELx_FnV_SHIFT (10) |