@@ -536,6 +536,21 @@ inline unsigned size_to_prdtl(unsigned bytes, unsigned bytes_per_prd)
return (bytes + bytes_per_prd - 1) / bytes_per_prd;
}
+/* Given a guest buffer address, perform an IO operation */
+void ahci_guest_io(AHCIQState *ahci, uint8_t px, uint8_t ide_cmd,
+ uint64_t buffer, size_t bufsize)
+{
+ AHCICommand *cmd;
+
+ cmd = ahci_command_create(ide_cmd);
+ ahci_command_set_buffer(cmd, buffer);
+ ahci_command_set_size(cmd, bufsize);
+ ahci_command_commit(ahci, cmd, px);
+ ahci_command_issue(ahci, cmd);
+ ahci_command_verify(ahci, cmd);
+ ahci_command_free(cmd);
+}
+
typedef struct AHCICommand {
/* Test Management Data */
uint8_t name;
@@ -520,6 +520,8 @@ void ahci_set_command_header(AHCIQState *ahci, uint8_t px,
void ahci_destroy_command(AHCIQState *ahci, uint8_t px, uint8_t cx);
unsigned ahci_pick_cmd(AHCIQState *ahci, uint8_t px);
unsigned size_to_prdtl(unsigned bytes, unsigned bytes_per_prd);
+void ahci_guest_io(AHCIQState *ahci, uint8_t px, uint8_t ide_cmd,
+ uint64_t gbuffer, size_t size);
/* Command Lifecycle */
AHCICommand *ahci_command_create(uint8_t command_name);
ahci_guest_io is a shorthand function that will, in one shot, execute a data command on the guest to the specified guest buffer location, in the requested amount. Signed-off-by: John Snow <jsnow@redhat.com> --- tests/libqos/ahci.c | 15 +++++++++++++++ tests/libqos/ahci.h | 2 ++ 2 files changed, 17 insertions(+)