Displaying 9 results from an estimated 9 matches for "paravirt_arch_dup_mmap".
2023 Feb 07
1
[PATCH v2] x86/paravirt: merge activate_mm and dup_mmap callbacks
...mm((prev), (next)); \
+ paravirt_enter_mmap(next); \
switch_mm((prev), (next), NULL); \
} while (0);
@@ -167,7 +167,7 @@ static inline void arch_dup_pkeys(struct mm_struct *oldmm,
static inline int arch_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm)
{
arch_dup_pkeys(oldmm, mm);
- paravirt_arch_dup_mmap(oldmm, mm);
+ paravirt_enter_mmap(mm);
return ldt_dup_context(oldmm, mm);
}
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 73e9522db7c1..07bbdceaf35a 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -332,16 +332,9 @@ st...
2017 Oct 04
0
[PATCH 05/13] x86/paravirt: Move paravirt asm macros to paravirt-asm.h
...sergs_sysret64), \
- CLBR_NONE, \
- jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_usergs_sysret64))
-#endif /* CONFIG_X86_32 */
-
-#endif /* __ASSEMBLY__ */
-#else /* CONFIG_PARAVIRT */
+#else /* !CONFIG_PARAVIRT */
# define default_banner x86_init_noop
-#ifndef __ASSEMBLY__
static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
struct mm_struct *mm)
{
@@ -936,6 +818,8 @@ static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
{
}
-#endif /* __ASSEMBLY__ */
#endif /* !CONFIG_PARAVIRT */
+
+#endif /* __ASSEMBLY_...
2018 Feb 26
0
[v1 1/1] xen, mm: Allow deferred page initialization for xen pv domains
...overkill IMO. There is no need
to patch the callsites for optimal performance.
I'd put it into struct x86_hyper_init and pre-init it with x86_init_noop
> #else /* __ASSEMBLY__ */
>
> #define _PVSITE(ptype, clobbers, ops, word, algn) \
> @@ -964,6 +969,10 @@ static inline void paravirt_arch_dup_mmap(struct mm_struct *oldmm,
> static inline void paravirt_arch_exit_mmap(struct mm_struct *mm)
> {
> }
> +
> +static inline void paravirt_after_bootmem(void)
> +{
> +}
> #endif /* __ASSEMBLY__ */
> #endif /* !CONFIG_PARAVIRT */
> #endif /* _ASM_X86_PARAVIRT_H */
>...
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2017 May 19
13
[PATCH 00/10] paravirt: make amount of paravirtualization configurable
Today paravirtualization is a all-or-nothing game: either a kernel is
compiled with no paravirtualization support at all, or it is supporting
paravirtualized environments like Xen pv-guests or lguest additionally
to some paravirtualized tuning for KVM, Hyperv, VMWare or Xen
HVM-guests.
As support of pv-guests requires quite intrusive pv-hooks (e.g. all
access functions to page table entries,
2018 Aug 13
11
[PATCH v2 00/11] x86/paravirt: several cleanups
This series removes some no longer needed stuff from paravirt
infrastructure and puts large quantities of paravirt ops under a new
config option PARAVIRT_XXL which is selected by XEN_PV only.
A pvops kernel without XEN_PV being configured is about 2.5% smaller
with this series applied.
tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt:
Fix spectre-v2 mitigations for
2018 Aug 10
13
[PATCH 00/10] x86/paravirt: several cleanups
This series removes some no longer needed stuff from paravirt
infrastructure and puts large quantities of paravirt ops under a new
config option PARAVIRT_XXL which is selected by XEN_PV only.
A pvops kernel without XEN_PV being configured is about 2.5% smaller
with this series applied.
tip commit 5800dc5c19f34e6e03b5adab1282535cb102fafd ("x86/paravirt:
Fix spectre-v2 mitigations for
2017 Oct 04
31
[PATCH 00/13] x86/paravirt: Make pv ops code generation more closely match reality
This changes the pv ops code generation to more closely match reality.
For example, instead of:
callq *0xffffffff81e3a400 (pv_irq_ops.save_fl)
vmlinux will now show:
pushfq
pop %rax
nop
nop
nop
nop
nop
which is what the runtime version of the code will show in most cases.
This idea was suggested by Andy Lutomirski.
The benefits are:
- For the most common runtime cases
2017 Oct 04
31
[PATCH 00/13] x86/paravirt: Make pv ops code generation more closely match reality
This changes the pv ops code generation to more closely match reality.
For example, instead of:
callq *0xffffffff81e3a400 (pv_irq_ops.save_fl)
vmlinux will now show:
pushfq
pop %rax
nop
nop
nop
nop
nop
which is what the runtime version of the code will show in most cases.
This idea was suggested by Andy Lutomirski.
The benefits are:
- For the most common runtime cases