Displaying 17 results from an estimated 17 matches for "__default_kernel_pte_mask".
2020 Jul 14
0
[PATCH v4 13/75] x86/boot/compressed/64: Rename kaslr_64.c to ident_map_64.c
...dent_map_64.c
@@ -29,6 +29,15 @@
#define __PAGE_OFFSET __PAGE_OFFSET_BASE
#include "../../mm/ident_map.c"
+#ifdef CONFIG_X86_5LEVEL
+unsigned int __pgtable_l5_enabled;
+unsigned int pgdir_shift = 39;
+unsigned int ptrs_per_p4d = 1;
+#endif
+
+/* Used by PAGE_KERN* macros: */
+pteval_t __default_kernel_pte_mask __read_mostly = ~0;
+
/* Used to track our page table allocation area. */
struct alloc_pgt_data {
unsigned char *pgt_buf;
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index d7408af55738..7c61a8c5b9cf 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x8...
2020 Nov 03
0
[patch V3 20/37] io-mapping: Cleanup atomic iomap
..., pgprot_t prot)
+void __iomem *__iomap_local_pfn_prot(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, translate non-WB request to UC- just in
@@ -60,8 +60,6 @@ void __iomem *iomap_atomic_pfn_prot(unsi
/* Filter out unsupported __PAGE_KERNEL* bits: */
pgprot_val(prot) &= __default_kernel_pte_mask;
- preempt_disable();
- pagefault_disable();
return (void __force __iomem *)__kmap_local_pfn_prot(pfn, prot);
}
-EXPORT_SYMBOL_GPL(iomap_atomic_pfn_prot);
+EXPORT_SYMBOL_GPL(__iomap_local_pfn_prot);
--- a/include/linux/io-mapping.h
+++ b/include/linux/io-mapping.h
@@ -69,13 +69,17 @@ io_mappin...
2020 Jul 14
0
[PATCH v4 14/75] x86/boot/compressed/64: Add page-fault handler
...ssed/misc.h
+++ b/arch/x86/boot/compressed/misc.h
@@ -37,6 +37,9 @@
#define memptr unsigned
#endif
+/* boot/compressed/vmlinux start and end markers */
+extern char _head[], _end[];
+
/* misc.c */
extern memptr free_mem_ptr;
extern memptr free_mem_end_ptr;
@@ -146,4 +149,7 @@ extern pteval_t __default_kernel_pte_mask;
extern gate_desc boot_idt[BOOT_IDT_ENTRIES];
extern struct desc_ptr boot_idt_desc;
+/* IDT Entry Points */
+void boot_page_fault(void);
+
#endif /* BOOT_COMPRESSED_MISC_H */
--
2.27.0
2020 Apr 02
0
[PATCH 14/70] x86/boot/compressed/64: Add page-fault handler
...@@ -37,6 +37,9 @@
> #define memptr unsigned
> #endif
>
> +/* boot/compressed/vmlinux start and end markers */
> +extern char _head[], _end[];
> +
> /* misc.c */
> extern memptr free_mem_ptr;
> extern memptr free_mem_end_ptr;
> @@ -146,4 +149,7 @@ extern pteval_t __default_kernel_pte_mask;
> extern gate_desc boot_idt[BOOT_IDT_ENTRIES];
> extern struct desc_ptr boot_idt_desc;
>
> +/* IDT Entry Points */
> +void boot_pf_handler(void);
> +
> #endif /* BOOT_COMPRESSED_MISC_H */
> --
> 2.17.1
>
--
Regards/Gruss,
Boris.
https://people.kernel.org...
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Feb 11
83
[RFC PATCH 00/62] Linux as SEV-ES Guest Support
Hi,
here is the first public post of the patch-set to enable Linux to run
under SEV-ES enabled hypervisors. The code is mostly feature-complete,
but there are still a couple of bugs to fix. Nevertheless, given the
size of the patch-set, I think it is about time to ask for initial
feedback of the changes that come with it. To better understand the code
here is a quick explanation of SEV-ES first.
2020 Jul 24
86
[PATCH v5 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a rebased version of the latest SEV-ES patches. They are now
based on latest tip/master instead of upstream Linux and include the
necessary changes.
Changes to v4 are in particular:
- Moved early IDT setup code to idt.c, because the idt_descr
and the idt_table are now static
- This required to make stack protector work early (or
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Jul 14
92
[PATCH v4 00/75] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the fourth version of the SEV-ES Guest Support patches. I
addressed the review comments sent to me for the previous version and
rebased the code v5.8-rc5.
The biggest change in this version is the IST handling code for the
#VC handler. I adapted the entry code for the #VC handler to the big
pile of entry code changes merged into
2020 Aug 24
96
[PATCH v6 00/76] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is the new version of the SEV-ES client enabling patch-set. It is
based on the latest tip/master branch and contains the necessary
changes. In particular those ar:
- Enabling CR4.FSGSBASE early on supported processors so that
early #VC exceptions on APs can be handled.
- Add another patch (patch 1) to fix a KVM frame-size build
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Sep 07
84
[PATCH v7 00/72] x86: SEV-ES Guest Support
From: Joerg Roedel <jroedel at suse.de>
Hi,
here is a new version of the SEV-ES Guest Support patches for x86. The
previous versions can be found as a linked list starting here:
https://lore.kernel.org/lkml/20200824085511.7553-1-joro at 8bytes.org/
I updated the patch-set based on ther review comments I got and the
discussions around it.
Another important change is that the early IDT
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by
2020 Apr 28
116
[PATCH v3 00/75] x86: SEV-ES Guest Support
Hi,
here is the next version of changes to enable Linux to run as an SEV-ES
guest. The code was rebased to v5.7-rc3 and got a fair number of changes
since the last version.
What is SEV-ES
==============
SEV-ES is an acronym for 'Secure Encrypted Virtualization - Encrypted
State' and means a hardware feature of AMD processors which hides the
register state of VCPUs to the hypervisor by