search for: domid_io

Hi, I am bit confused about the do_update_va_mapping call that dom0 makes in xen_ident_map_ISA() to map ffff8800000a0000 to mfn a0. The mfn belongs to DOMID_IO. Before the mfn is mapped, the l1 entry is not empty: 0000000139d08500: 00100001380a0027 After the mapping: 0000000139d08500: 00100000000a0467 as expected. However, the mfn 1380a0 still seems to belong to dom0. Shouldn''t that have been returned back to the xen heap? thanks, Mukesh

...found at http://xenbits.xensource.com/gitweb?p=osstest.git;a=summary Not pushing. ------------------------------------------------------------ commit 145ae98bfab8280744ad5e800cc036e1c84c0486 Author: Daniel De Graaf <dgdegra@tycho.nsa.gov> Date: Wed Sep 25 10:48:20 2013 +0200 fix DOMID_IO mapping permission checks When the permission checks for memory mapping were moved from get_pg_owner to xsm_mmu_update in aaba7a677, the exception for DOMID_IO was not taken into account. This will cause IO memory mappings by PV domains (mini-os in particular) to fail when XSM/...

Hi, I am following http://xenbits.xen.org/docs/unstable/misc/vtpm.txt, but I''m having some problems when I try to start vtpmmgr-stubdom I''m using Xen 4.3 on Ubuntu 12.04 and I have a physical TPM. The config file for vTPM manager is: kernel="/usr/local/lib/xen/boot/vtpmmgr-stubdom.gz" memory=16 disk=["file:/var/vtpmmgr-stubdom.img,hda,w"]

...MMU_NORMAL_PT_UPDATE: + * Updates an entry in a page table. If updating an L1 table, and the new + * table entry is valid/present, the mapped frame must belong to the FD, if + * an FD has been specified. If attempting to map an I/O page then the + * caller assumes the privilege of the FD. + * FD == DOMID_IO: Permit /only/ I/O mappings, at the priv level of the caller. + * FD == DOMID_XEN: Map restricted areas of Xen''s heap space. + * ptr[:2] -- Machine address of the page-table entry to modify. + * val -- Value to write. + * + * ptr[1:0] == MMU_MACHPHYS_UPDATE: + * Updates an entry in...

...dom_io); +} + + int get_page_from_l1e( l1_pgentry_t l1e, struct domain *d) @@ -611,8 +619,7 @@ get_page_from_l1e( return 0; } - if ( unlikely(!mfn_valid(mfn)) || - unlikely(page_get_owner(page) == dom_io) ) + if ( iomem_page_test(mfn, page) ) { /* DOMID_IO reverts to caller for privilege checks. */ if ( d == dom_io ) diff -r 749b60ccc177 xen/common/grant_table.c --- a/xen/common/grant_table.c Wed Jul 25 14:03:08 2007 +0100 +++ b/xen/common/grant_table.c Mon Jul 30 10:28:27 2007 +0100 @@ -199,6 +199,7 @@ __gnttab_map_grant_ref( int...

Hi, I have this bug when I activate java-6-jdk on Tomcat 5.5.26 in a Lenny Guest : Jul 31 21:24:15 tomcat01 kernel: 1 multicall(s) failed: cpu 3 Jul 31 21:24:15 tomcat01 kernel: call 1/1: op=14 arg=[b7f1a000] result=-22 Jul 31 21:24:15 tomcat01 kernel: ------------[ cut here ]------------ Jul 31 21:24:15 tomcat01 kernel: kernel BUG at arch/x86/xen/multicalls.c:103! Jul 31 21:24:15 tomcat01

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual block

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 only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

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 only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

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 only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Hi Andi, This patch series implements the Linux Xen guest in terms of the paravirt-ops interface. The features in implemented this patch series are: * domU only * UP only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen console * virtual

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Unlike full virtualization in which the virtual machine provides the same platform interface as running natively on the hardware, paravirtualization requires modification to the guest operating system to work with the platform interface provided by the hypervisor. Xen was designed with performance in mind. Calls to the hypervisor are minimized, batched if necessary, and non-critical codepaths

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

Hi Andi, This series of patches implements the Xen paravirt-ops interface. It applies to 2.6.21-rc7 + your patches + the last batch of pv_ops patches I posted. This patch generally restricts itself to Xen-specific parts of the tree, though it does make a few small changes elsewhere. These patches include: - some helper routines for allocating address space and walking pagetables - Xen

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 only (most code is SMP-safe, but there's no way to create a new vcpu) * writable pagetables, with late pinning/early unpinning (no shadow pagetable support) * supports both PAE and non-PAE modes * xen hvc console (console=hvc0) *