search for: xen_featur

..., mmap_idx; unsigned long kvaddr, uvaddr; tap_blkif_t *info; + struct mm_struct *mm; info = tapfds[tapidx]; @@ -1008,13 +1013,15 @@ static void fast_flush_area(pending_req_ return; } + mm = info->vma ? info->vma->vm_mm : NULL; + if (info->vma != NULL && xen_feature(XENFEAT_auto_translated_physmap)) { - down_write(&info->vma->vm_mm->mmap_sem); + down_write(&mm->mmap_sem); zap_page_range(info->vma, MMAP_VADDR(info->user_vstart, u_idx, 0), req->nr_pages << PAGE_SHIFT, NULL); - up_write(&info-&...

...-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c index 492ade8..d99346e 100644 --- a/arch/x86/pci/xen.c +++ b/arch/x86/pci/xen.c @@ -374,7 +374,7 @@ int __init pci_xen_init(void) int __init pci_xen_hvm_init(void) { - if (!xen_feature(XENFEAT_hvm_pirqs)) + if (!xen_have_vector_callback || !xen_feature(XENFEAT_hvm_pirqs)) return 0; #ifdef CONFIG_ACPI

...celog tools +config XEN_HAVE_PVMMU + bool + endmenu diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index db3aa34..92449a0 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -360,6 +360,7 @@ static enum bp_state increase_reservation(unsigned long nr_pages) if (!xen_feature(XENFEAT_auto_translated_physmap)) set_phys_to_machine(pfn, frame_list[i]); +#ifdef CONFIG_XEN_HAVE_PVMMU /* Link back into the page tables if not highmem. */ if (xen_pv_domain() && !PageHighMem(page) && !xen_feature(XENFEAT_auto_translated_physmap)) { @@ -371,6 +...

...ke kASLR. > Still to early to do: h = cpuid(HYPERVIOR_SIGNATURE) if (h == KVMKVMKVM) { if (cpuid(kvm_features) & kvm_rnd) rdmsr(kvm_rnd) else (h == HyperV) { if (cpuid(hv_features) & hv_rnd) rdmsr(hv_rnd) else (h == XenXenXen) { if (cpuid(xen_features) & xen_rnd) rdmsr(xen_rnd) } ? -- Gleb.

...ke kASLR. > Still to early to do: h = cpuid(HYPERVIOR_SIGNATURE) if (h == KVMKVMKVM) { if (cpuid(kvm_features) & kvm_rnd) rdmsr(kvm_rnd) else (h == HyperV) { if (cpuid(hv_features) & hv_rnd) rdmsr(hv_rnd) else (h == XenXenXen) { if (cpuid(xen_features) & xen_rnd) rdmsr(xen_rnd) } ? -- Gleb.

...blkback and future netback patches it just cause a lock contention, as those pages never go to userspace. Therefore this series does the following: - the bulk of the original function (everything after the mapping hypercall) is moved to arch-dependent set/clear_foreign_p2m_mapping - the "if (xen_feature(XENFEAT_auto_translated_physmap))" brach goes to ARM - therefore the ARM function could be much smaller, the m2p_override stubs could be also removed - on x86 the set_phys_to_machine calls were moved up to this new funcion from m2p_override functions - and m2p_override functions are only...

...blkback and future netback patches it just cause a lock contention, as those pages never go to userspace. Therefore this series does the following: - the bulk of the original function (everything after the mapping hypercall) is moved to arch-dependent set/clear_foreign_p2m_mapping - the "if (xen_feature(XENFEAT_auto_translated_physmap))" brach goes to ARM - therefore the ARM function could be much smaller, the m2p_override stubs could be also removed - on x86 the set_phys_to_machine calls were moved up to this new funcion from m2p_override functions - and m2p_override functions are only...

Hi Xen folks! I''ve faced with one strange thing in ARM version of Xen: when I use xc_map_foreign_bulk() to map some memory from domU to dom0, after unmap() for previous returned address - memory is not freed at all. Let''s look at call stack: xc_map_foreign() -> linux_privcmd_map_foreign_bulk() -> { addr = mmap(fd); ioctl(fd, IOCTL_PRIVCMD_MMAPBATCH_V2 );

This series implements ballooning for Xen on ARM and builds and Mukesh''s PVH privcmd stuff to implement foreign page mapping on ARM, replacing the old "HACK: initial (very hacky) XENMAPSPACE_gmfn_foreign" patch. The baseline is a bit complex, it is basically Stefano''s xenarm-forlinus branch (commit bbd6eb29214e) merged with Konrad''s linux-next-pvh branch

Hi! I need to install vmplayer on Xen guest with centos4.4. When I run vmplayer-config.pl I have problems with inserting vmmon module in kernel. The dmesg shows this message vmmon: Unknown symbol xen_features I read on the forums that vmware is not running on Xen. What I am wondering is if this affirmation refers also to vmplayer and if not how can I skip this problem? Thanks in advance! --------------------------------- Everyone is raving about the all-new Yahoo! Mail beta. _________________...

...t; if (h == KVMKVMKVM) { > > if (cpuid(kvm_features) & kvm_rnd) > > rdmsr(kvm_rnd) > > else (h == HyperV) { > > if (cpuid(hv_features) & hv_rnd) > > rdmsr(hv_rnd) > > else (h == XenXenXen) { > > if (cpuid(xen_features) & xen_rnd) > > rdmsr(xen_rnd) > > } > > > > If we need to do chase loops, especially not so... > What loops exactly? As a non native English speaker I fail to understand if your answer is "yes" or "no" ;) -- Gleb.

...t; if (h == KVMKVMKVM) { > > if (cpuid(kvm_features) & kvm_rnd) > > rdmsr(kvm_rnd) > > else (h == HyperV) { > > if (cpuid(hv_features) & hv_rnd) > > rdmsr(hv_rnd) > > else (h == XenXenXen) { > > if (cpuid(xen_features) & xen_rnd) > > rdmsr(xen_rnd) > > } > > > > If we need to do chase loops, especially not so... > What loops exactly? As a non native English speaker I fail to understand if your answer is "yes" or "no" ;) -- Gleb.

...; } + arch_leave_lazy_mmu_mode(); return ret; } diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c index b4d4eac..c7dc2d6 100644 --- a/drivers/xen/grant-table.c +++ b/drivers/xen/grant-table.c @@ -751,6 +751,8 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, if (xen_feature(XENFEAT_auto_translated_physmap)) return ret; + arch_enter_lazy_mmu_mode(); + for (i = 0; i < count; i++) { /* Do not add to override if the map failed. */ if (map_ops[i].status) @@ -769,6 +771,8 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops, return ret; } + a...

...slated_physmap, which hence can''t ever be true if this code is being built as pv driver. Wouldn''t it hence make sense to #ifdef these code blocks, or to enhance xen/features.h so that checks for those features that are always on in hvm and return a constant 1 rather than using the xen_features array. Thanks, Jan _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel

...ns(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 4aec5ed..53e5726 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1713,6 +1713,8 @@ static void __init xen_hvm_guest_init(void) xen_hvm_init_shared_info(); + xen_panic_handler_init(); + if (xen_feature(XENFEAT_hvm_callback_vector)) xen_have_vector_callback = 1; xen_hvm_smp_init(); -- 1.7.11.7

...ns(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 4aec5ed..53e5726 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1713,6 +1713,8 @@ static void __init xen_hvm_guest_init(void) xen_hvm_init_shared_info(); + xen_panic_handler_init(); + if (xen_feature(XENFEAT_hvm_callback_vector)) xen_have_vector_callback = 1; xen_hvm_smp_init(); -- 1.7.11.7

...ns(+) diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c index 4aec5ed..53e5726 100644 --- a/arch/x86/xen/enlighten.c +++ b/arch/x86/xen/enlighten.c @@ -1713,6 +1713,8 @@ static void __init xen_hvm_guest_init(void) xen_hvm_init_shared_info(); + xen_panic_handler_init(); + if (xen_feature(XENFEAT_hvm_callback_vector)) xen_have_vector_callback = 1; xen_hvm_smp_init(); -- 1.7.11.7

...te decrease_reservation(unsigned long nr_pages, gfp_t gfp) /* No more mappings: invalidate P2M and add to balloon. */ for (i = 0; i < nr_pages; i++) { pfn = mfn_to_pfn(frame_list[i]); - __set_phys_to_machine(pfn, - pfn_to_mfn(page_to_pfn(__get_cpu_var(balloon_scratch_page)))); + if (!xen_feature(XENFEAT_auto_translated_physmap)) { + unsigned long p; + struct page *pg; + pg = __get_cpu_var(balloon_scratch_page); + p = page_to_pfn(pg); + __set_phys_to_machine(pfn, pfn_to_mfn(p)); + } balloon_append(pfn_to_page(pfn)); } -- 1.7.10.4

...cpuid(kvm_features) & kvm_rnd) > >>> rdmsr(kvm_rnd) > >>> else (h == HyperV) { > >>> if (cpuid(hv_features) & hv_rnd) > >>> rdmsr(hv_rnd) > >>> else (h == XenXenXen) { > >>> if (cpuid(xen_features) & xen_rnd) > >>> rdmsr(xen_rnd) > >>> } > >>> > >> > >> If we need to do chase loops, especially not so... > >> > > What loops exactly? As a non native English speaker I fail to understand > > if your answer...

...cpuid(kvm_features) & kvm_rnd) > >>> rdmsr(kvm_rnd) > >>> else (h == HyperV) { > >>> if (cpuid(hv_features) & hv_rnd) > >>> rdmsr(hv_rnd) > >>> else (h == XenXenXen) { > >>> if (cpuid(xen_features) & xen_rnd) > >>> rdmsr(xen_rnd) > >>> } > >>> > >> > >> If we need to do chase loops, especially not so... > >> > > What loops exactly? As a non native English speaker I fail to understand > > if your answer...