search for: memory_exchange

Source: xen Version: 4.8.1~pre.2017.01.23-1 Severity: grave Tags: security upstream Justification: user security hole Hi, the following vulnerability was published for xen. CVE-2017-7228[0]: | An issue (known as XSA-212) was discovered in Xen, with fixes available | for 4.8.x, 4.7.x, 4.6.x, 4.5.x, and 4.4.x. The earlier XSA-29 fix | introduced an insufficient check on XENMEM_exchange input,

...vmx_vmexit_handler: 632 0xffff8300001313ff arch_do_dom0_op: 552 0xffff8300001327f3 arch_do_dom0_op: 552 0xffff830000158660 emulate_privileged_op: 520 0xffff83000015a06c emulate_privileged_op: 520 0xffff830000114ce9 memory_exchange: 488 0xffff83000011598a memory_exchange: 488 0xffff83000010ce29 do_event_channel_op: 464 0xffff83000014b033 do_mmu_update: 456 0xffff83000014bd28 do_mmu_update: 456 0xffff8300001224a2 sedf_adjust_wei...

Hi, I''ve added some preliminary support for VT-d for paravirtualized guests. This must be enabled using an ''iommu_pv'' boot parameter (disabled by default). I''ve added some python bindigs to allow xend to assign PCI devices to IOMMU for PV guests. For HVM guests this is handled in ioemu. Not sure if it makes sense to handle both cases in one place. The

...get_knownalive_domain(e); page_list_add_tail(page, &e->page_list); page_set_owner(page, e); diff --git a/xen/common/memory.c b/xen/common/memory.c index 83e2666..a9d91c1 100644 --- a/xen/common/memory.c +++ b/xen/common/memory.c @@ -454,7 +454,7 @@ static long memory_exchange(XEN_GUEST_HANDLE_PARAM(xen_memory_exchange_t) arg) (j * (1UL << exch.out.extent_order))); spin_lock(&d->page_alloc_lock); - d->tot_pages -= dec_count; + domain_decrease_tot_pages(d, dec_count);...

Hi all, this patch series makes the necessary changes to make sure that the current ARM hypercall ABI can be used as-is on 64 bit ARM platforms: - it defines xen_ulong_t as uint64_t on ARM; - it introduces a new macro to handle guest pointers, called XEN_GUEST_HANDLE_PARAM (that has size 4 bytes on aarch and is going to have size 8 bytes on aarch64); - it replaces all the occurrences of

Hi all, this patch series makes the necessary changes to make sure that the current ARM hypercall ABI can be used as-is on 64 bit ARM platforms: - it defines xen_ulong_t as uint64_t on ARM; - it introduces a new macro to handle guest pointers, called XEN_GUEST_HANDLE_PARAM (that has size 4 bytes on aarch and is going to have size 8 bytes on aarch64); - it replaces all the occurrences of