From 05f488e418db0498dc2b7775874bd6957afd3a05 Mon Sep 17 00:00:00 2001 From: Tamas K Lengyel Date: Tue, 16 Jun 2020 10:30:48 +0200 Subject: [PATCH] libxc: xc_memshr_fork with interrupts blocked MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Toolstack side for creating forks with interrupt injection blocked. Signed-off-by: Tamas K Lengyel Reviewed-by: Roger Pau Monné Acked-by: Ian Jackson Acked-by: Wei Liu Release-acked-by: Paul Durrant --- tools/libxc/include/xenctrl.h | 3 ++- tools/libxc/xc_memshr.c | 4 +++- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/tools/libxc/include/xenctrl.h b/tools/libxc/include/xenctrl.h index 113ddd935d..7f15a61f29 100644 --- a/tools/libxc/include/xenctrl.h +++ b/tools/libxc/include/xenctrl.h @@ -2240,7 +2240,8 @@ int xc_memshr_range_share(xc_interface *xch, int xc_memshr_fork(xc_interface *xch, uint32_t source_domain, uint32_t client_domain, - bool allow_with_iommu); + bool allow_with_iommu, + bool block_interrupts); /* * Note: this function is only intended to be used on short-lived forks that diff --git a/tools/libxc/xc_memshr.c b/tools/libxc/xc_memshr.c index 2300cc7075..a6cfd7dccf 100644 --- a/tools/libxc/xc_memshr.c +++ b/tools/libxc/xc_memshr.c @@ -240,7 +240,7 @@ int xc_memshr_debug_gref(xc_interface *xch, } int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, - bool allow_with_iommu) + bool allow_with_iommu, bool block_interrupts) { xen_mem_sharing_op_t mso; @@ -251,6 +251,8 @@ int xc_memshr_fork(xc_interface *xch, uint32_t pdomid, uint32_t domid, if ( allow_with_iommu ) mso.u.fork.flags |= XENMEM_FORK_WITH_IOMMU_ALLOWED; + if ( block_interrupts ) + mso.u.fork.flags |= XENMEM_FORK_BLOCK_INTERRUPTS; return xc_memshr_memop(xch, domid, &mso); } -- 2.39.5