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| author | Sascha Bischoff <Sascha.Bischoff@arm.com> | 2026-09-04 11:40:53 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2026-09-14 10:49:07 +0100 |
| commit | d749533c006d4e6bd4413a8c99768cdd4f4e706d (patch) | |
| tree | 868985ffd215b55dc54d10444c54a0e8ad95a8fb /include/linux | |
| parent | 21fd40005fb36c24ce0c28758b48da1238ffc909 (diff) | |
| download | linux-next-d749533c006d4e6bd4413a8c99768cdd4f4e706d.tar.gz linux-next-d749533c006d4e6bd4413a8c99768cdd4f4e706d.zip | |
KVM: arm64: gic-v5: Implement VPE IRS MMIO Ops
Introduce interfaces to make VPEs valid, and to configure them, via
the host's IRS. As with the other valid bits in the GICv5 VM tables,
VPEs cannot be made valid directly, and instead are made valid via an
IRS MMIO Op.
Additionally, some of the VPE configuration takes place via the IRS
MMIO interface too (via the IRS_VPE_CR0, IRS_VPE_DBR). VPE doorbells
are, for example, configured via this interface.
The existing VPE-doorbell-based commands are extended with:
VPE_MAKE_VALID - Make the VPE valid in the VPET
Note: There is no VPE_MAKE_INVALID as VPEs are only made invalid on
teardown, at which point the whole VMTE is marked as invalid. Hence,
it is not required.
Signed-off-by: Sascha Bischoff <sascha.bischoff@arm.com>
Link: https://patch.msgid.link/20260904113404.4051341-14-sascha.bischoff@arm.com
Signed-off-by: Marc Zyngier <maz@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/irqchip/arm-gic-v5.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/irqchip/arm-gic-v5.h b/include/linux/irqchip/arm-gic-v5.h index 24949b604531..299e75bc9525 100644 --- a/include/linux/irqchip/arm-gic-v5.h +++ b/include/linux/irqchip/arm-gic-v5.h @@ -661,6 +661,7 @@ enum gicv5_vcpu_cmd { VMT_L2_MAP, /* Map in a L2 VMT - *may* happen on VM init */ VMTE_MAKE_VALID, /* Make the VMTE valid */ VMTE_MAKE_INVALID, /* Make the VMTE (et al.) invalid */ + VPE_MAKE_VALID, /* No corresponding invalid */ SPI_VIST_MAKE_VALID, /* No corresponding invalid */ LPI_VIST_MAKE_VALID, /* Triggered by a guest */ LPI_VIST_MAKE_INVALID, /* Triggered by a guest */ |