* xlat/kvm_mem_flags.in: New file.
* kvm.c (kvm_ioctl_set_user_memory_region): New function.
(kvm_ioctl) <KVM_SET_USER_MEMORY_REGION>: Use it.
(top-level): Include print_fields.h and xlat/kvm_mem_flags.h.
Change in v2:
* Use umove_or_printaddr instead of umove because umove_or_printaddr
performs verbose(tcp) check and prints the zero address nicely.
Suggested by ldv.
Signed-off-by: Masatake YAMATO <yam...@redhat.com>
---
kvm.c | 23 +++++++++++++++++++++++
xlat/kvm_mem_flags.in | 2 ++
2 files changed, 25 insertions(+)
create mode 100644 xlat/kvm_mem_flags.in
diff --git a/kvm.c b/kvm.c
index f725f9df..19779c84 100644
--- a/kvm.c
+++ b/kvm.c
@@ -32,6 +32,7 @@
#ifdef HAVE_LINUX_KVM_H
#include <linux/kvm.h>
+#include "print_fields.h"
static int
kvm_ioctl_create_vcpu(struct tcb *const tcp, const kernel_ulong_t arg)
@@ -42,6 +43,26 @@ kvm_ioctl_create_vcpu(struct tcb *const tcp, const
kernel_ulong_t arg)
return RVAL_IOCTL_DECODED | RVAL_FD;
}
+#include "xlat/kvm_mem_flags.h"
+static int
+kvm_ioctl_set_user_memory_region(struct tcb *const tcp, const kernel_ulong_t
arg)
+{
+ struct kvm_userspace_memory_region u_memory_region;
+
+ tprints(", ");
+ if (umove_or_printaddr(tcp, arg, &u_memory_region))
+ return RVAL_IOCTL_DECODED;
+
+ PRINT_FIELD_U("{", u_memory_region, slot);
+ PRINT_FIELD_FLAGS(", ", u_memory_region, flags, kvm_mem_flags,
+ "KVM_MEM_???");
+ PRINT_FIELD_X(", ", u_memory_region, guest_phys_addr);
+ PRINT_FIELD_U(", ", u_memory_region, memory_size);
+ PRINT_FIELD_X(", ", u_memory_region, userspace_addr);
+
+ return RVAL_IOCTL_DECODED;
+}
+
int
kvm_ioctl(struct tcb *const tcp, const unsigned int code, const kernel_ulong_t
arg)
{
@@ -50,6 +71,8 @@ kvm_ioctl(struct tcb *const tcp, const unsigned int code,
const kernel_ulong_t a
return kvm_ioctl_create_vcpu(tcp, arg);
case KVM_CREATE_VM:
return RVAL_DECODED | RVAL_FD;
+ case KVM_SET_USER_MEMORY_REGION:
+ return kvm_ioctl_set_user_memory_region(tcp, arg);
case KVM_RUN:
case KVM_GET_VCPU_MMAP_SIZE:
case KVM_GET_API_VERSION:
diff --git a/xlat/kvm_mem_flags.in b/xlat/kvm_mem_flags.in
new file mode 100644
index 00000000..82b93ba7
--- /dev/null
+++ b/xlat/kvm_mem_flags.in
@@ -0,0 +1,2 @@
+KVM_MEM_LOG_DIRTY_PAGES (1 << 0)
+KVM_MEM_READONLY (1 << 1)
--
2.13.6
------------------------------------------------------------------------------
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