[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 01/11] xen: Add xc_domain_add_to_physmap to xen_interface.
From: Anthony PERARD <anthony.perard@xxxxxxxxxx> This function will be used to support sync dirty bitmap. This come with a check against every Xen release, and special implementation for Xen version that doesn't have this specific call. This function will not be usable with Xen 3.3 because the behavior is different. Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx> Signed-off-by: Alexander Graf <agraf@xxxxxxx> --- configure | 29 ++++++++++++++++++++++++++++- hw/xen_common.h | 14 ++++++++++++++ 2 files changed, 42 insertions(+), 1 deletions(-) diff --git a/configure b/configure index 44c092a..b63b49f 100755 --- a/configure +++ b/configure @@ -1210,6 +1210,7 @@ int main(void) { xc = xc_interface_open(0, 0, 0); xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0); xc_gnttab_open(NULL, 0); + xc_domain_add_to_physmap(0, 0, XENMAPSPACE_gmfn, 0, 0); return 0; } EOF @@ -1228,10 +1229,14 @@ EOF # error HVM_MAX_VCPUS not defined #endif int main(void) { + struct xen_add_to_physmap xatp = { + .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0, + }; xs_daemon_open(); xc_interface_open(); xc_gnttab_open(); xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0); + xc_memory_op(0, XENMEM_add_to_physmap, &xatp); return 0; } EOF @@ -1240,7 +1245,29 @@ EOF xen_ctrl_version=400 xen=yes - # Xen 3.3.0, 3.4.0 + # Xen 3.4.0 + elif ( + cat > $TMPC <<EOF +#include <xenctrl.h> +#include <xs.h> +int main(void) { + struct xen_add_to_physmap xatp = { + .domid = 0, .space = XENMAPSPACE_gmfn, .idx = 0, .gpfn = 0, + }; + xs_daemon_open(); + xc_interface_open(); + xc_gnttab_open(); + xc_hvm_set_mem_type(0, 0, HVMMEM_ram_ro, 0, 0); + xc_memory_op(0, XENMEM_add_to_physmap, &xatp); + return 0; +} +EOF + compile_prog "" "$xen_libs" + ) ; then + xen_ctrl_version=340 + xen=yes + + # Xen 3.3.0 elif ( cat > $TMPC <<EOF #include <xenctrl.h> diff --git a/hw/xen_common.h b/hw/xen_common.h index a1958a0..2c79af6 100644 --- a/hw/xen_common.h +++ b/hw/xen_common.h @@ -71,6 +71,20 @@ static inline int xc_domain_populate_physmap_exact (xc_handle, domid, nr_extents, extent_order, mem_flags, extent_start); } +static inline int xc_domain_add_to_physmap(int xc_handle, uint32_t domid, + unsigned int space, unsigned long idx, + xen_pfn_t gpfn) +{ + struct xen_add_to_physmap xatp = { + .domid = domid, + .space = space, + .idx = idx, + .gpfn = gpfn, + }; + + return xc_memory_op(xc_handle, XENMEM_add_to_physmap, &xatp); +} + /* Xen 4.1 */ #else -- 1.6.0.2 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel
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