search for: highstart_pfn

...oid dump_fault_path(unsigned lon p += (address >> 21) * 2; printk(KERN_ALERT "%08lx -> *pme = %08lx:%08lx\n", page, p[1], p[0]); -#ifndef CONFIG_HIGHPTE + mfn = (p[0] >> PAGE_SHIFT) | (p[1] << 20); +#ifdef CONFIG_HIGHPTE + if (mfn_to_pfn(mfn) >= highstart_pfn) + return; +#endif if (p[0] & 1) { - mfn = (p[0] >> PAGE_SHIFT) | (p[1] << 20); page = mfn_to_pfn(mfn) << PAGE_SHIFT; p = (unsigned long *) __va(page); address &= 0x001fffff; @@ -242,7 +245,6 @@ static void dump_fault_path(unsigned lon printk(KERN...

...highmem.h +++ b/arch/mips/include/asm/highmem.h @@ -24,7 +24,7 @@ #include <linux/interrupt.h> #include <linux/uaccess.h> #include <asm/cpu-features.h> -#include <asm/kmap_types.h> +#include <asm/kmap_size.h> /* declarations for highmem.c */ extern unsigned long highstart_pfn, highend_pfn; @@ -48,11 +48,11 @@ extern pte_t *pkmap_page_table; #define ARCH_HAS_KMAP_FLUSH_TLB extern void kmap_flush_tlb(unsigned long addr); -extern void *kmap_atomic_pfn(unsigned long pfn); #define flush_cache_kmaps() BUG_ON(cpu_has_dc_aliases) -extern void kmap_init(void); +#define...

Create a configurable hole in the linear address space at the top of memory. A more advanced interface is needed to negotiate how much space the hypervisor is allowed to steal, but in the end, it seems most likely that a fixed constant size will be chosen for the compiled kernel, potentially propagated to an information page used by paravirtual initialization to determine interface compatibility.

Create a configurable hole in the linear address space at the top of memory. A more advanced interface is needed to negotiate how much space the hypervisor is allowed to steal, but in the end, it seems most likely that a fixed constant size will be chosen for the compiled kernel, potentially propagated to an information page used by paravirtual initialization to determine interface compatibility.

...00 +++ linux-2.6.13/arch/i386/mm/init.c 2005-08-05 15:20:04.000000000 -0700 @@ -42,6 +42,10 @@ = unsigned int __VMALLOC_RESERVE =3D 128 << 20; = +#ifdef CONFIG_RELOCATABLE_FIXMAP +unsigned long __FIXADDR_TOP =3D 0; +#endif + DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); unsigned long highstart_pfn, highend_pfn; = @@ -478,6 +482,12 @@ printk("NX (Execute Disable) protection: active\n"); #endif = +#ifdef CONFIG_RELOCATABLE_FIXMAP + if (!__FIXADDR_TOP) = + __FIXADDR_TOP =3D 0xfffff000UL-(CONFIG_MEMORY_HOLE << 20); + printk(KERN_INFO "Fixmap top relocated to %lxh\...

...00 +++ linux-2.6.13/arch/i386/mm/init.c 2005-08-05 15:20:04.000000000 -0700 @@ -42,6 +42,10 @@ = unsigned int __VMALLOC_RESERVE =3D 128 << 20; = +#ifdef CONFIG_RELOCATABLE_FIXMAP +unsigned long __FIXADDR_TOP =3D 0; +#endif + DEFINE_PER_CPU(struct mmu_gather, mmu_gathers); unsigned long highstart_pfn, highend_pfn; = @@ -478,6 +482,12 @@ printk("NX (Execute Disable) protection: active\n"); #endif = +#ifdef CONFIG_RELOCATABLE_FIXMAP + if (!__FIXADDR_TOP) = + __FIXADDR_TOP =3D 0xfffff000UL-(CONFIG_MEMORY_HOLE << 20); + printk(KERN_INFO "Fixmap top relocated to %lxh\...

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

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

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

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, This series of patches updates paravirt_ops in various ways. Some of the changes are plain cleanups and improvements, and some add some interfaces necessary for Xen. The brief overview: add-MAINTAINERS.patch - obvious remove-CONFIG_DEBUG_PARAVIRT.patch - no longer needed paravirt-nop.patch - mark nop operations consistently paravirt-pte-accessors.patch - operations to pack/unpack

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hi Andi, Here's a repost of the paravirt_ops update series I posted the other day. Since then, I found a few potential bugs with patching clobbering, cleaned up and documented paravirt.h and the patching machinery. Overview: add-MAINTAINERS.patch obvious remove-CONFIG_DEBUG_PARAVIRT.patch No longer meaningful or needed. paravirt-nop.patch Clean up nop paravirt_ops functions, mainly to

Hello, I''m getting many "Error getting mfn" on a xen4.1.3 with dom0 3.4.11 x86_32. I thought it could be related to xen/mmu: Release just the MFN list, not MFN list and part of pagetables. http://git.kernel.org/?p=linux/kernel/git/konrad/xen.git;a=commit;h=785f62314984ea3af9dd830b020289ba2509ae69 (XEN) Freed 212kB init memory. (XEN) mm.c:908:d0 Error getting mfn 2009b (pfn

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console

Hi Andi, This patch series implements the Linux Xen guest as a paravirt_ops backend. The features in implemented this patch series are: * domU only * UP and SMP guest support (NEW!) * dynamic ticks (NEW!) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes (non-PAE may be broken at the moment) * xen hvc console