From: Suzuki K Poulose <suzuki.poulose@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu,
kvm@vger.kernel.org, cdall@kernel.org, marc.zyngier@arm.com,
punit.agrawal@arm.com, will.deacon@arm.com,
catalin.marinas@arm.com, pbonzini@redhat.com, rkrcmar@redhat.com,
ard.biesheuvel@linaro.org, peter.maydell@linaro.org,
kristina.martsenko@arm.com, mark.rutland@arm.com,
Suzuki K Poulose <suzuki.poulose@arm.com>
Subject: [PATCH v2 06/17] kvm: arm/arm64: Fix stage2_flush_memslot for 4 level page table
Date: Tue, 27 Mar 2018 14:15:16 +0100 [thread overview]
Message-ID: <1522156531-28348-7-git-send-email-suzuki.poulose@arm.com> (raw)
In-Reply-To: <1522156531-28348-1-git-send-email-suzuki.poulose@arm.com>
So far we have only supported 3 level page table with fixed IPA of 40bits.
Fix stage2_flush_memslot() to accommodate for 4 level tables.
Cc: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <cdall@kernel.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
---
virt/kvm/arm/mmu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index ec62d1c..16a19fb 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -375,7 +375,8 @@ static void stage2_flush_memslot(struct kvm *kvm,
pgd = kvm->arch.pgd + stage2_pgd_index(addr);
do {
next = stage2_pgd_addr_end(addr, end);
- stage2_flush_puds(kvm, pgd, addr, next);
+ if (!stage2_pgd_none(*pgd))
+ stage2_flush_puds(kvm, pgd, addr, next);
} while (pgd++, addr = next, addr != end);
}
--
2.7.4
next prev parent reply other threads:[~2018-03-27 13:16 UTC|newest]
Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-03-27 13:15 [PATCH v2 00/17] kvm: arm64: Dynamic & 52bit IPA support Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 01/17] virtio: mmio-v1: Validate queue PFN Suzuki K Poulose
2018-03-27 14:07 ` Michael S. Tsirkin
2018-03-27 13:15 ` [PATCH v2 02/17] virtio: pci-legacy: Validate queue pfn Suzuki K Poulose
2018-03-27 14:11 ` Michael S. Tsirkin
2018-07-13 0:36 ` Michael S. Tsirkin
2018-07-13 8:54 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 03/17] arm64: Make page table helpers reusable Suzuki K Poulose
2018-04-26 10:54 ` Julien Grall
2018-03-27 13:15 ` [PATCH v2 04/17] arm64: Refactor pud_huge for reusability Suzuki K Poulose
2018-04-26 10:55 ` Julien Grall
2018-03-27 13:15 ` [PATCH v2 05/17] arm64: Helper for parange to PASize Suzuki K Poulose
2018-04-26 10:58 ` Julien Grall
2018-04-27 15:18 ` Suzuki K Poulose
2018-04-27 15:18 ` Julien Grall
2018-05-03 14:39 ` James Morse
2018-05-08 13:47 ` Suzuki K Poulose
2018-03-27 13:15 ` Suzuki K Poulose [this message]
2018-03-27 13:15 ` [PATCH v2 07/17] kvm: arm/arm64: Remove spurious WARN_ON Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 08/17] kvm: arm/arm64: Prepare for VM specific stage2 translations Suzuki K Poulose
2018-04-26 13:35 ` Julien Grall
2018-04-27 15:22 ` Suzuki K Poulose
2018-04-27 15:58 ` Suzuki K Poulose
2018-04-27 16:04 ` Julien Grall
2018-03-27 13:15 ` [PATCH v2 09/17] kvm: arm64: Make stage2 page table layout dynamic Suzuki K Poulose
2018-04-25 16:35 ` Julien Grall
2018-04-25 16:37 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 10/17] kvm: arm64: Dynamic configuration of VTCR and VTTBR mask Suzuki K Poulose
2018-04-30 11:14 ` Julien Grall
2018-03-27 13:15 ` [PATCH v2 11/17] kvm: arm64: Configure VTCR per VM Suzuki K Poulose
2018-04-03 14:58 ` James Morse
2018-04-03 15:44 ` Suzuki K Poulose
2018-05-03 14:39 ` James Morse
2018-05-08 11:16 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 12/17] kvm: arm/arm64: Expose supported physical address limit for VM Suzuki K Poulose
2018-04-13 13:21 ` Peter Maydell
2018-04-16 10:23 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 13/17] kvm: arm/arm64: Allow tuning the physical address size " Suzuki K Poulose
2018-04-25 16:10 ` Julien Grall
2018-04-25 16:22 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 14/17] kvm: arm64: Switch to per VM IPA limit Suzuki K Poulose
2018-04-13 16:27 ` Punit Agrawal
2018-04-16 10:25 ` Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 15/17] vgic: Add support for 52bit guest physical address Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 16/17] kvm: arm64: Add support for handling 52bit IPA Suzuki K Poulose
2018-03-27 13:15 ` [PATCH v2 17/17] kvm: arm64: Allow IPA size supported by the system Suzuki K Poulose
2018-03-27 13:15 ` [kvmtool PATCH 18/17] kvmtool: Allow backends to run checks on the KVM device fd Suzuki K Poulose
2018-03-27 13:15 ` [kvmtool PATCH 19/17] kvmtool: arm64: Add support for guest physical address size Suzuki K Poulose
2018-03-27 13:15 ` [kvmtool PATCH 20/17] kvmtool: arm64: Switch memory layout Suzuki K Poulose
2018-04-03 12:34 ` Jean-Philippe Brucker
2018-03-27 13:15 ` [kvmtool PATCH 21/17] kvmtool: arm: Add support for creating VM with PA size Suzuki K Poulose
2018-04-26 14:08 ` Julien Grall
2018-04-30 14:17 ` Julien Grall
2018-04-30 14:18 ` Suzuki K Poulose
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