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[Qemu-devel] [PULL v2 34/65] libqos/ahci: Add ahci_guest_io


From: Stefan Hajnoczi
Subject: [Qemu-devel] [PULL v2 34/65] libqos/ahci: Add ahci_guest_io
Date: Mon, 16 Feb 2015 15:45:59 +0000

From: John Snow <address@hidden>

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 <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Message-id: address@hidden
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 tests/libqos/ahci.c | 15 +++++++++++++++
 tests/libqos/ahci.h |  2 ++
 2 files changed, 17 insertions(+)

diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index cd1f3ff..345d1f1 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -548,6 +548,21 @@ 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 port, 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, port);
+    ahci_command_issue(ahci, cmd);
+    ahci_command_verify(ahci, cmd);
+    ahci_command_free(cmd);
+}
+
 struct AHCICommand {
     /* Test Management Data */
     uint8_t name;
diff --git a/tests/libqos/ahci.h b/tests/libqos/ahci.h
index 57ff344..1206c7a 100644
--- a/tests/libqos/ahci.h
+++ b/tests/libqos/ahci.h
@@ -521,6 +521,8 @@ void ahci_destroy_command(AHCIQState *ahci, uint8_t port, 
uint8_t slot);
 void ahci_write_fis(AHCIQState *ahci, RegH2DFIS *fis, uint64_t addr);
 unsigned ahci_pick_cmd(AHCIQState *ahci, uint8_t port);
 unsigned size_to_prdtl(unsigned bytes, unsigned bytes_per_prd);
+void ahci_guest_io(AHCIQState *ahci, uint8_t port, uint8_t ide_cmd,
+                   uint64_t gbuffer, size_t size);
 
 /* Command Lifecycle */
 AHCICommand *ahci_command_create(uint8_t command_name);
-- 
2.1.0




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