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From: Marc Zyngier <marc.zyngier@arm.com>
To: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>
Subject: [PATCH v2 11/19] KVM: arm/arm64: Demote HYP VA range display to being a debug feature
Date: Mon, 11 Dec 2017 14:49:29 +0000	[thread overview]
Message-ID: <20171211144937.4537-12-marc.zyngier@arm.com> (raw)
In-Reply-To: <20171211144937.4537-1-marc.zyngier@arm.com>

Displaying the HYP VA information is slightly counterproductive when
using VA randomization. Turn it into a debug feature only, and adjust
the last displayed value to reflect the top of RAM instead of ~0.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
 virt/kvm/arm/mmu.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/virt/kvm/arm/mmu.c b/virt/kvm/arm/mmu.c
index b4b69c2d1012..84d09f1a44d4 100644
--- a/virt/kvm/arm/mmu.c
+++ b/virt/kvm/arm/mmu.c
@@ -1760,9 +1760,10 @@ int kvm_mmu_init(void)
 	 */
 	BUG_ON((hyp_idmap_start ^ (hyp_idmap_end - 1)) & PAGE_MASK);
 
-	kvm_info("IDMAP page: %lx\n", hyp_idmap_start);
-	kvm_info("HYP VA range: %lx:%lx\n",
-		 kern_hyp_va(PAGE_OFFSET), kern_hyp_va(~0UL));
+	kvm_debug("IDMAP page: %lx\n", hyp_idmap_start);
+	kvm_debug("HYP VA range: %lx:%lx\n",
+		  kern_hyp_va(PAGE_OFFSET),
+		  kern_hyp_va((unsigned long)high_memory - 1));
 
 	if (hyp_idmap_start >= kern_hyp_va(PAGE_OFFSET) &&
 	    hyp_idmap_start <  kern_hyp_va(~0UL) &&
-- 
2.14.2

  parent reply	other threads:[~2017-12-11 14:46 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-11 14:49 [PATCH v2 00/19] KVM/arm64: Randomise EL2 mappings Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 01/19] arm64: asm-offsets: Avoid clashing DMA definitions Marc Zyngier
2017-12-11 15:03   ` Russell King - ARM Linux
2017-12-11 15:22     ` Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 02/19] arm64: asm-offsets: Remove unused definitions Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 03/19] arm64: asm-offsets: Remove potential circular dependency Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 04/19] arm64: alternatives: Enforce alignment of struct alt_instr Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 05/19] arm64: alternatives: Add dynamic patching feature Marc Zyngier
2017-12-13 17:53   ` Catalin Marinas
2017-12-14 12:22     ` Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 06/19] arm64: insn: Add N immediate encoding Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 07/19] arm64: insn: Add encoder for bitwise operations using litterals Marc Zyngier
2017-12-12 18:32   ` James Morse
2017-12-12 23:40     ` Peter Maydell
2017-12-13 14:32     ` Marc Zyngier
2017-12-13 15:45       ` James Morse
2017-12-13 15:52         ` Marc Zyngier
2017-12-14  8:40         ` Marc Zyngier
2017-12-12 18:56   ` Peter Maydell
2017-12-11 14:49 ` [PATCH v2 08/19] arm64: KVM: Dynamically patch the kernel/hyp VA mask Marc Zyngier
2017-12-14 13:17   ` James Morse
2017-12-14 13:27     ` Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 09/19] arm64: cpufeatures: Drop the ARM64_HYP_OFFSET_LOW feature flag Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 10/19] KVM: arm/arm64: Do not use kern_hyp_va() with kvm_vgic_global_state Marc Zyngier
2017-12-11 14:49 ` Marc Zyngier [this message]
2017-12-11 14:49 ` [PATCH v2 12/19] KVM: arm/arm64: Move ioremap calls to create_hyp_io_mappings Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 13/19] KVM: arm/arm64: Keep GICv2 HYP VAs in kvm_vgic_global_state Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 14/19] KVM: arm/arm64: Move HYP IO VAs to the "idmap" range Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 15/19] arm64; insn: Add encoder for the EXTR instruction Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 16/19] arm64: insn: Allow ADD/SUB (immediate) with LSL #12 Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 17/19] arm64: KVM: Dynamically compute the HYP VA mask Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 18/19] arm64: KVM: Introduce EL2 VA randomisation Marc Zyngier
2017-12-11 14:49 ` [PATCH v2 19/19] arm64: Update the KVM memory map documentation Marc Zyngier

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