search for: xen_features

As usual, written and (build-)tested on 2.6.27.4 and made apply to the 2.6.18 tree without further testing. Signed-off-by: Jan Beulich <jbeulich@novell.com> Index: head-2008-11-04/drivers/xen/blktap/blktap.c =================================================================== --- head-2008-11-04.orig/drivers/xen/blktap/blktap.c 2008-10-01 16:35:04.000000000 +0200 +++

Signed-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 ||

The ARM platform has no concept of PVMMU and therefor no HYPERVISOR_update_va_mapping et al. Allow this code to be compiled out when not required. In some similar situations (e.g. P2M) we have defined dummy functions to avoid this, however I think we can/should draw the line at dummying out actual hypercalls. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> --- arch/x86/xen/Kconfig

...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.

(This is a continuation of "[PATCH v9] xen/grant-table: Avoid m2p_override during mapping") The grant mapping API does m2p_override unnecessarily: only gntdev needs it, for 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

(This is a continuation of "[PATCH v9] xen/grant-table: Avoid m2p_override during mapping") The grant mapping API does m2p_override unnecessarily: only gntdev needs it, for 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

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.

This patch is a significant performance improvement for the m2p_override: about 6% using the gntdev device. Each m2p_add/remove_override call issues a MULTI_grant_table_op and a __flush_tlb_single if kmap_op != NULL. Batching all the calls together is a great performance benefit because it means issuing one hypercall total rather than two hypercall per page. If paravirt_lazy_mode is set

...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

kernel use callback linked in panic_notifier_list to notice others when panic happens. NORET_TYPE void panic(const char * fmt, ...){ ... atomic_notifier_call_chain(&panic_notifier_list, 0, buf); } When xen aware this, it will call xen_reboot(SHUTDOWN_crash) to send out an event with reason code - SHUTDOWN_crash. xen_panic_handler_init() is defined to register on panic_notifier_list but

kernel use callback linked in panic_notifier_list to notice others when panic happens. NORET_TYPE void panic(const char * fmt, ...){ ... atomic_notifier_call_chain(&panic_notifier_list, 0, buf); } When xen aware this, it will call xen_reboot(SHUTDOWN_crash) to send out an event with reason code - SHUTDOWN_crash. xen_panic_handler_init() is defined to register on panic_notifier_list but

kernel use callback linked in panic_notifier_list to notice others when panic happens. NORET_TYPE void panic(const char * fmt, ...){ ... atomic_notifier_call_chain(&panic_notifier_list, 0, buf); } When xen aware this, it will call xen_reboot(SHUTDOWN_crash) to send out an event with reason code - SHUTDOWN_crash. xen_panic_handler_init() is defined to register on panic_notifier_list but

In commit cd9151e2: xen/balloon: set a mapping for ballooned out pages we have the ballooned out page''s mapping set to a scratch page. That commit also sets the P2M entry of ballooned out page to the scratch page''s MFN. This is necessary for PV guest but not for HVM guest. On the other hand, setting the P2M entry would trigger BUG_ON in __set_phys_to_machine. The correct thing

...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 i...

...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 i...