[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20250123042447.2259648-3-riel@surriel.com>
Date: Wed, 22 Jan 2025 23:23:21 -0500
From: Rik van Riel <riel@...riel.com>
To: x86@...nel.org
Cc: linux-kernel@...r.kernel.org,
bp@...en8.de,
peterz@...radead.org,
dave.hansen@...ux.intel.com,
zhengqi.arch@...edance.com,
nadav.amit@...il.com,
thomas.lendacky@....com,
kernel-team@...a.com,
linux-mm@...ck.org,
akpm@...ux-foundation.org,
jannh@...gle.com,
mhklinux@...look.com,
andrew.cooper3@...rix.com,
Rik van Riel <riel@...riel.com>
Subject: [PATCH v7 02/12] x86/mm: remove pv_ops.mmu.tlb_remove_table call
Every pv_ops.mmu.tlb_remove_table call ends up calling tlb_remove_table.
Get rid of the indirection by simply calling tlb_remove_table directly,
and not going through the paravirt function pointers.
Signed-off-by: Rik van Riel <riel@...riel.com>
Suggested-by: Qi Zheng <zhengqi.arch@...edance.com>
---
arch/x86/hyperv/mmu.c | 1 -
arch/x86/include/asm/paravirt.h | 5 -----
arch/x86/include/asm/paravirt_types.h | 2 --
arch/x86/kernel/kvm.c | 1 -
arch/x86/kernel/paravirt.c | 1 -
arch/x86/xen/mmu_pv.c | 1 -
6 files changed, 11 deletions(-)
diff --git a/arch/x86/hyperv/mmu.c b/arch/x86/hyperv/mmu.c
index 1cc113200ff5..cbe6c71e17c1 100644
--- a/arch/x86/hyperv/mmu.c
+++ b/arch/x86/hyperv/mmu.c
@@ -240,5 +240,4 @@ void hyperv_setup_mmu_ops(void)
pr_info("Using hypercall for remote TLB flush\n");
pv_ops.mmu.flush_tlb_multi = hyperv_flush_tlb_multi;
- pv_ops.mmu.tlb_remove_table = tlb_remove_table;
}
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index d4eb9e1d61b8..794ba3647c6c 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -91,11 +91,6 @@ static inline void __flush_tlb_multi(const struct cpumask *cpumask,
PVOP_VCALL2(mmu.flush_tlb_multi, cpumask, info);
}
-static inline void paravirt_tlb_remove_table(struct mmu_gather *tlb, void *table)
-{
- PVOP_VCALL2(mmu.tlb_remove_table, tlb, table);
-}
-
static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
{
PVOP_VCALL1(mmu.exit_mmap, mm);
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index 8d4fbe1be489..13405959e4db 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -136,8 +136,6 @@ struct pv_mmu_ops {
void (*flush_tlb_multi)(const struct cpumask *cpus,
const struct flush_tlb_info *info);
- void (*tlb_remove_table)(struct mmu_gather *tlb, void *table);
-
/* Hook for intercepting the destruction of an mm_struct. */
void (*exit_mmap)(struct mm_struct *mm);
void (*notify_page_enc_status_changed)(unsigned long pfn, int npages, bool enc);
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index 7a422a6c5983..3be9b3342c67 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -838,7 +838,6 @@ static void __init kvm_guest_init(void)
#ifdef CONFIG_SMP
if (pv_tlb_flush_supported()) {
pv_ops.mmu.flush_tlb_multi = kvm_flush_tlb_multi;
- pv_ops.mmu.tlb_remove_table = tlb_remove_table;
pr_info("KVM setup pv remote TLB flush\n");
}
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 2b78a6b466ed..c019771e0123 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -186,7 +186,6 @@ struct paravirt_patch_template pv_ops = {
.mmu.flush_tlb_kernel = native_flush_tlb_global,
.mmu.flush_tlb_one_user = native_flush_tlb_one_user,
.mmu.flush_tlb_multi = native_flush_tlb_multi,
- .mmu.tlb_remove_table = tlb_remove_table,
.mmu.exit_mmap = paravirt_nop,
.mmu.notify_page_enc_status_changed = paravirt_nop,
diff --git a/arch/x86/xen/mmu_pv.c b/arch/x86/xen/mmu_pv.c
index 55a4996d0c04..041e17282af0 100644
--- a/arch/x86/xen/mmu_pv.c
+++ b/arch/x86/xen/mmu_pv.c
@@ -2137,7 +2137,6 @@ static const typeof(pv_ops) xen_mmu_ops __initconst = {
.flush_tlb_kernel = xen_flush_tlb,
.flush_tlb_one_user = xen_flush_tlb_one_user,
.flush_tlb_multi = xen_flush_tlb_multi,
- .tlb_remove_table = tlb_remove_table,
.pgd_alloc = xen_pgd_alloc,
.pgd_free = xen_pgd_free,
--
2.47.1
Powered by blists - more mailing lists