Displaying 20 results from an estimated 36 matches for "x86_write_percpu".
2007 Nov 15
0
[patch 12/19] xen: deal with stale cr3 values when unpinning pagetables
...saddr */
+DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual vcpu cr3 */
struct start_info *xen_start_info;
EXPORT_SYMBOL_GPL(xen_start_info);
@@ -632,32 +648,36 @@ static unsigned long xen_read_cr3(void)
return x86_read_percpu(xen_cr3);
}
+static void set_current_cr3(void *v)
+{
+ x86_write_percpu(xen_current_cr3, (unsigned long)v);
+}
+
static void xen_write_cr3(unsigned long cr3)
{
+ struct mmuext_op *op;
+ struct multicall_space mcs;
+ unsigned long mfn = pfn_to_mfn(PFN_DOWN(cr3));
+
BUG_ON(preemptible());
- if (cr3 == x86_read_percpu(xen_cr3)) {
- /* just a simple tlb flush */
-...
2007 Nov 15
0
[patch 12/19] xen: deal with stale cr3 values when unpinning pagetables
...saddr */
+DEFINE_PER_CPU(unsigned long, xen_current_cr3); /* actual vcpu cr3 */
struct start_info *xen_start_info;
EXPORT_SYMBOL_GPL(xen_start_info);
@@ -632,32 +648,36 @@ static unsigned long xen_read_cr3(void)
return x86_read_percpu(xen_cr3);
}
+static void set_current_cr3(void *v)
+{
+ x86_write_percpu(xen_current_cr3, (unsigned long)v);
+}
+
static void xen_write_cr3(unsigned long cr3)
{
+ struct mmuext_op *op;
+ struct multicall_space mcs;
+ unsigned long mfn = pfn_to_mfn(PFN_DOWN(cr3));
+
BUG_ON(preemptible());
- if (cr3 == x86_read_percpu(xen_cr3)) {
- /* just a simple tlb flush */
-...
2007 Oct 01
2
[PATCH RFC] paravirt: cleanup lazy mode handling
...d)
}
return ret;
+}
+
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+
+static void enter_lazy(enum paravirt_lazy_mode mode, struct pv_lazy_ops *ops)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, mode);
+ (*ops->enter)();
+}
+
+static void leave_lazy(enum paravirt_lazy_mode mode, struct pv_lazy_ops *ops)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+ (*ops->leave)();...
2007 Oct 01
2
[PATCH RFC] paravirt: cleanup lazy mode handling
...d)
}
return ret;
+}
+
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+
+static void enter_lazy(enum paravirt_lazy_mode mode, struct pv_lazy_ops *ops)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, mode);
+ (*ops->enter)();
+}
+
+static void leave_lazy(enum paravirt_lazy_mode mode, struct pv_lazy_ops *ops)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+ (*ops->leave)();...
2007 Oct 09
0
[PATCH RFC REPOST 2/2] paravirt: clean up lazy mode handling
...isable_iospace(void)
}
return ret;
+}
+
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+
+static inline void enter_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, mode);
+}
+
+void paravirt_leave_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+}
+
+void paravirt_enter_lazy_mmu(void)
+{
+ enter_lazy(PARAVIRT_...
2007 Oct 09
0
[PATCH RFC REPOST 2/2] paravirt: clean up lazy mode handling
...isable_iospace(void)
}
return ret;
+}
+
+static DEFINE_PER_CPU(enum paravirt_lazy_mode, paravirt_lazy_mode) = PARAVIRT_LAZY_NONE;
+
+static inline void enter_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != PARAVIRT_LAZY_NONE);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, mode);
+}
+
+void paravirt_leave_lazy(enum paravirt_lazy_mode mode)
+{
+ BUG_ON(x86_read_percpu(paravirt_lazy_mode) != mode);
+ BUG_ON(preemptible());
+
+ x86_write_percpu(paravirt_lazy_mode, PARAVIRT_LAZY_NONE);
+}
+
+void paravirt_enter_lazy_mmu(void)
+{
+ enter_lazy(PARAVIRT_...
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Oct 12
10
[PATCH 00/10] REVIEW: Xen patches for 2.6.24
This is my current set of updates to Xen for 2.6.24. This is largely
a bugfix set, and a couple of them are also relevent to 2.6.23.
These are in the pre-x86 merge form; I'll update them once the merge
goes into git.
Quick overview:
- remove some dead code in arch/i386/mm/init.c
- clean up some duplicate includes
- when sending an IPI, yield the vcpu if the destination doesn't have
2007 Apr 28
3
[PATCH] i386: introduce voyager smp_ops, fix voyager build
...ible externally, indexed physically */
DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_mm, 0 };
@@ -423,7 +422,7 @@ find_smp_config(void)
VOYAGER_SUS_IN_CONTROL_PORT);
current_thread_info()->cpu = boot_cpu_id;
- write_pda(cpu_number, boot_cpu_id);
+ x86_write_percpu(cpu_number, boot_cpu_id);
}
/*
@@ -436,7 +435,7 @@ smp_store_cpu_info(int id)
*c = boot_cpu_data;
- identify_cpu(c);
+ identify_secondary_cpu(c);
}
/* set up the trampoline and return the physical address of the code */
@@ -460,7 +459,7 @@ start_secondary(void *unused)
/* external f...
2007 Apr 28
3
[PATCH] i386: introduce voyager smp_ops, fix voyager build
...ible externally, indexed physically */
DEFINE_PER_CPU(struct tlb_state, cpu_tlbstate) ____cacheline_aligned = { &init_mm, 0 };
@@ -423,7 +422,7 @@ find_smp_config(void)
VOYAGER_SUS_IN_CONTROL_PORT);
current_thread_info()->cpu = boot_cpu_id;
- write_pda(cpu_number, boot_cpu_id);
+ x86_write_percpu(cpu_number, boot_cpu_id);
}
/*
@@ -436,7 +435,7 @@ smp_store_cpu_info(int id)
*c = boot_cpu_data;
- identify_cpu(c);
+ identify_secondary_cpu(c);
}
/* set up the trampoline and return the physical address of the code */
@@ -460,7 +459,7 @@ start_secondary(void *unused)
/* external f...
2007 Dec 20
6
[PATCH 0/15] adjust pvops to accomodate its x86_64 variant
Hi folks,
With this series, the bulk of the work of pvops64 is done.
Here, I integrate most of the paravirt.c and paravirt.h files, making
them applicable to both architectures.
CONFIG_PARAVIRT is _not_ present yet. Basically, this code is missing page
table integration (patches currently being worked on by Jeremy).
Enjoy
2007 Dec 20
6
[PATCH 0/15] adjust pvops to accomodate its x86_64 variant
Hi folks,
With this series, the bulk of the work of pvops64 is done.
Here, I integrate most of the paravirt.c and paravirt.h files, making
them applicable to both architectures.
CONFIG_PARAVIRT is _not_ present yet. Basically, this code is missing page
table integration (patches currently being worked on by Jeremy).
Enjoy
2007 Apr 18
5
[patch 0/5] i386-gdt-pda i386 gdt and pda updates
Hi Andrew,
This patch series adds to the end of the existing i386-gdt-cleanups patches:
allow-per-cpu-variables-to-be-page-aligned.patch
i386-gdt-cleanups-use-per-cpu-variables-for-gdt-pda.patch
i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot.patch
i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot-fix.patch
i386-gdt-cleanups-clean-up-cpu_init.patch
2007 Apr 18
5
[patch 0/5] i386-gdt-pda i386 gdt and pda updates
Hi Andrew,
This patch series adds to the end of the existing i386-gdt-cleanups patches:
allow-per-cpu-variables-to-be-page-aligned.patch
i386-gdt-cleanups-use-per-cpu-variables-for-gdt-pda.patch
i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot.patch
i386-gdt-cleanups-use-per-cpu-gdt-immediately-upon-boot-fix.patch
i386-gdt-cleanups-clean-up-cpu_init.patch
2007 Apr 18
3
Per-cpu patches on top of PDA stuff...
Hi Jeremy, all,
Sorry this took so long, spent last week in Japan at OSDL conf then
netconf. After several false starts, I ended up with a very simple
implementation, which clashes significantly with your work since then
8(. I've pushed the patches anyway, but it's going to be significant
work for me to re-merge them, so I wanted your feedback first.
The first patch simply changes
2007 Apr 18
3
Per-cpu patches on top of PDA stuff...
Hi Jeremy, all,
Sorry this took so long, spent last week in Japan at OSDL conf then
netconf. After several false starts, I ended up with a very simple
implementation, which clashes significantly with your work since then
8(. I've pushed the patches anyway, but it's going to be significant
work for me to re-merge them, so I wanted your feedback first.
The first patch simply changes
2007 Apr 18
8
[patch 0/6] i386 gdt and percpu cleanups
Hi Andi,
This is a series of patches based on your latest queue (as of the
other day, at least).
It includes:
- the most recent patch to compute the appropriate amount of percpu
space to allocate, using a separate reservation for modules where
needed.
- make the percpu sections page-aligned, so that percpu variables can
be page aligned if needed (which is used by gdt_page)
-
2007 Apr 18
8
[patch 0/6] i386 gdt and percpu cleanups
Hi Andi,
This is a series of patches based on your latest queue (as of the
other day, at least).
It includes:
- the most recent patch to compute the appropriate amount of percpu
space to allocate, using a separate reservation for modules where
needed.
- make the percpu sections page-aligned, so that percpu variables can
be page aligned if needed (which is used by gdt_page)
-
2007 Oct 15
13
[PATCH 00/12] xen/paravirt_ops patches for 2.6.24
Hi Linus,
Here's a set of patches to update paravirt_ops and Xen for 2.6.24
A quick overview of the patchset:
paravirt_ops:
Remove the monolithic paravirt_ops structure, and replace it with
smaller structures of related functions. Also, clean up the handling
of lazy mode to make it easier to implement.
x86/mm/init.c: remove a chunk of dead code
Xen:
- remove duplicate includes
-