From: Quentin Perret <qperret@google.com>
To: catalin.marinas@arm.com, will@kernel.org, maz@kernel.org,
james.morse@arm.com, julien.thierry.kdev@gmail.com,
suzuki.poulose@arm.com
Cc: android-kvm@google.com, linux-kernel@vger.kernel.org,
kernel-team@android.com, kvmarm@lists.cs.columbia.edu,
linux-arm-kernel@lists.infradead.org, tabba@google.com,
mark.rutland@arm.com, dbrazdil@google.com, mate.toth-pal@arm.com,
seanjc@google.com, qperret@google.com, robh+dt@kernel.org
Subject: [PATCH v3 01/32] arm64: lib: Annotate {clear,copy}_page() as position-independent
Date: Tue, 2 Mar 2021 14:59:31 +0000 [thread overview]
Message-ID: <20210302150002.3685113-2-qperret@google.com> (raw)
In-Reply-To: <20210302150002.3685113-1-qperret@google.com>
From: Will Deacon <will@kernel.org>
clear_page() and copy_page() are suitable for use outside of the kernel
address space, so annotate them as position-independent code.
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Quentin Perret <qperret@google.com>
---
arch/arm64/lib/clear_page.S | 4 ++--
arch/arm64/lib/copy_page.S | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/lib/clear_page.S b/arch/arm64/lib/clear_page.S
index 073acbf02a7c..b84b179edba3 100644
--- a/arch/arm64/lib/clear_page.S
+++ b/arch/arm64/lib/clear_page.S
@@ -14,7 +14,7 @@
* Parameters:
* x0 - dest
*/
-SYM_FUNC_START(clear_page)
+SYM_FUNC_START_PI(clear_page)
mrs x1, dczid_el0
and w1, w1, #0xf
mov x2, #4
@@ -25,5 +25,5 @@ SYM_FUNC_START(clear_page)
tst x0, #(PAGE_SIZE - 1)
b.ne 1b
ret
-SYM_FUNC_END(clear_page)
+SYM_FUNC_END_PI(clear_page)
EXPORT_SYMBOL(clear_page)
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index e7a793961408..29144f4cd449 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -17,7 +17,7 @@
* x0 - dest
* x1 - src
*/
-SYM_FUNC_START(copy_page)
+SYM_FUNC_START_PI(copy_page)
alternative_if ARM64_HAS_NO_HW_PREFETCH
// Prefetch three cache lines ahead.
prfm pldl1strm, [x1, #128]
@@ -75,5 +75,5 @@ alternative_else_nop_endif
stnp x16, x17, [x0, #112 - 256]
ret
-SYM_FUNC_END(copy_page)
+SYM_FUNC_END_PI(copy_page)
EXPORT_SYMBOL(copy_page)
--
2.30.1.766.gb4fecdf3b7-goog
next prev parent reply other threads:[~2021-03-02 18:12 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 14:59 [PATCH v3 00/32] KVM: arm64: A stage 2 for the host Quentin Perret
2021-03-02 14:59 ` Quentin Perret [this message]
2021-03-02 14:59 ` [PATCH v3 02/32] KVM: arm64: Link position-independent string routines into .hyp.text Quentin Perret
2021-03-02 14:59 ` [PATCH v3 03/32] arm64: kvm: Add standalone ticket spinlock implementation for use at hyp Quentin Perret
2021-03-02 14:59 ` [PATCH v3 04/32] KVM: arm64: Initialize kvm_nvhe_init_params early Quentin Perret
2021-03-04 13:39 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 05/32] KVM: arm64: Avoid free_page() in page-table allocator Quentin Perret
2021-03-02 14:59 ` [PATCH v3 06/32] KVM: arm64: Factor memory allocation out of pgtable.c Quentin Perret
2021-03-04 14:06 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 07/32] KVM: arm64: Introduce a BSS section for use at Hyp Quentin Perret
2021-03-04 14:09 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 08/32] KVM: arm64: Make kvm_call_hyp() a function call " Quentin Perret
2021-03-02 14:59 ` [PATCH v3 09/32] KVM: arm64: Allow using kvm_nvhe_sym() in hyp code Quentin Perret
2021-03-02 14:59 ` [PATCH v3 10/32] KVM: arm64: Introduce an early Hyp page allocator Quentin Perret
2021-03-04 14:38 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 11/32] KVM: arm64: Stub CONFIG_DEBUG_LIST at Hyp Quentin Perret
2021-03-02 14:59 ` [PATCH v3 12/32] KVM: arm64: Introduce a Hyp buddy page allocator Quentin Perret
2021-03-04 15:30 ` Will Deacon
2021-03-04 15:49 ` Quentin Perret
2021-03-02 14:59 ` [PATCH v3 13/32] KVM: arm64: Enable access to sanitized CPU features at EL2 Quentin Perret
2021-03-02 14:59 ` [PATCH v3 14/32] KVM: arm64: Factor out vector address calculation Quentin Perret
2021-03-02 14:59 ` [PATCH v3 15/32] KVM: arm64: Prepare the creation of s1 mappings at EL2 Quentin Perret
2021-03-04 18:47 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 16/32] KVM: arm64: Elevate hypervisor mappings creation " Quentin Perret
2021-03-04 19:25 ` Will Deacon
2021-03-05 9:14 ` Quentin Perret
2021-03-02 14:59 ` [PATCH v3 17/32] KVM: arm64: Use kvm_arch for stage 2 pgtable Quentin Perret
2021-03-02 14:59 ` [PATCH v3 18/32] KVM: arm64: Use kvm_arch in kvm_s2_mmu Quentin Perret
2021-03-02 14:59 ` [PATCH v3 19/32] KVM: arm64: Set host stage 2 using kvm_nvhe_init_params Quentin Perret
2021-03-02 14:59 ` [PATCH v3 20/32] KVM: arm64: Refactor kvm_arm_setup_stage2() Quentin Perret
2021-03-04 19:35 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 21/32] KVM: arm64: Refactor __load_guest_stage2() Quentin Perret
2021-03-02 14:59 ` [PATCH v3 22/32] KVM: arm64: Refactor __populate_fault_info() Quentin Perret
2021-03-04 19:39 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 23/32] KVM: arm64: Make memcache anonymous in pgtable allocator Quentin Perret
2021-03-04 19:44 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 24/32] KVM: arm64: Reserve memory for host stage 2 Quentin Perret
2021-03-04 19:49 ` Will Deacon
2021-03-05 9:17 ` Quentin Perret
2021-03-02 14:59 ` [PATCH v3 25/32] KVM: arm64: Sort the hypervisor memblocks Quentin Perret
2021-03-04 19:51 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 26/32] KVM: arm64: Introduce PROT_NONE mappings for stage 2 Quentin Perret
2021-03-04 20:00 ` Will Deacon
2021-03-05 9:52 ` Quentin Perret
2021-03-05 19:03 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 27/32] KVM: arm64: Refactor stage2_map_set_prot_attr() Quentin Perret
2021-03-04 20:03 ` Will Deacon
2021-03-05 9:18 ` Quentin Perret
2021-03-02 14:59 ` [PATCH v3 28/32] KVM: arm64: Add kvm_pgtable_stage2_idmap_greedy() Quentin Perret
2021-03-05 14:39 ` Will Deacon
2021-03-05 15:03 ` Quentin Perret
2021-03-05 16:59 ` Will Deacon
2021-03-02 14:59 ` [PATCH v3 29/32] KVM: arm64: Wrap the host with a stage 2 Quentin Perret
2021-03-05 19:29 ` Will Deacon
2021-03-08 9:22 ` Quentin Perret
2021-03-08 12:46 ` Will Deacon
2021-03-08 13:38 ` Quentin Perret
2021-03-08 13:52 ` Will Deacon
2021-03-02 15:00 ` [PATCH v3 30/32] KVM: arm64: Page-align the .hyp sections Quentin Perret
2021-03-04 20:05 ` Will Deacon
2021-03-02 15:00 ` [PATCH v3 31/32] KVM: arm64: Disable PMU support in protected mode Quentin Perret
2021-03-05 19:02 ` Will Deacon
2021-03-02 15:00 ` [PATCH v3 32/32] KVM: arm64: Protect the .hyp sections from the host Quentin Perret
2021-03-05 19:13 ` Will Deacon
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