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[Qemu-devel] [PATCH v2 5/9] libqos: allow zero-size allocations
From: |
John Snow |
Subject: |
[Qemu-devel] [PATCH v2 5/9] libqos: allow zero-size allocations |
Date: |
Fri, 8 Jan 2016 14:55:16 -0500 |
As part of streamlining the AHCI tests interface, it'd be nice
if specying a size of zero could be handled without special branches
and the allocator could handle this special case gracefully.
This lets me use the "ahci_io" macros for non-data commands, too,
which moves me forward towards shepherding all AHCI qtests into
a common set of commands in a unified pipeline.
Signed-off-by: John Snow <address@hidden>
---
tests/ahci-test.c | 8 +-------
tests/libqos/ahci.c | 6 +++---
tests/libqos/malloc.c | 4 ++++
3 files changed, 8 insertions(+), 10 deletions(-)
diff --git a/tests/ahci-test.c b/tests/ahci-test.c
index 8ebbd33..8c48587 100644
--- a/tests/ahci-test.c
+++ b/tests/ahci-test.c
@@ -890,18 +890,12 @@ static void ahci_test_io_rw_simple(AHCIQState *ahci,
unsigned bufsize,
static uint8_t ahci_test_nondata(AHCIQState *ahci, uint8_t ide_cmd)
{
uint8_t port;
- AHCICommand *cmd;
/* Sanitize */
port = ahci_port_select(ahci);
ahci_port_clear(ahci, port);
- /* Issue Command */
- cmd = ahci_command_create(ide_cmd);
- ahci_command_commit(ahci, cmd, port);
- ahci_command_issue(ahci, cmd);
- ahci_command_verify(ahci, cmd);
- ahci_command_free(cmd);
+ ahci_io(ahci, port, ide_cmd, NULL, 0, 0);
return port;
}
diff --git a/tests/libqos/ahci.c b/tests/libqos/ahci.c
index a219f67..df29560 100644
--- a/tests/libqos/ahci.c
+++ b/tests/libqos/ahci.c
@@ -668,16 +668,16 @@ void ahci_io(AHCIQState *ahci, uint8_t port, uint8_t
ide_cmd,
props = ahci_command_find(ide_cmd);
g_assert(props);
ptr = ahci_alloc(ahci, bufsize);
- g_assert(ptr);
+ g_assert(!bufsize || ptr);
qmemset(ptr, 0x00, bufsize);
- if (props->write) {
+ if (bufsize && props->write) {
bufwrite(ptr, buffer, bufsize);
}
ahci_guest_io(ahci, port, ide_cmd, ptr, bufsize, sector);
- if (props->read) {
+ if (bufsize && props->read) {
bufread(ptr, buffer, bufsize);
}
diff --git a/tests/libqos/malloc.c b/tests/libqos/malloc.c
index 82b9df5..19d05ca 100644
--- a/tests/libqos/malloc.c
+++ b/tests/libqos/malloc.c
@@ -270,6 +270,10 @@ uint64_t guest_alloc(QGuestAllocator *allocator, size_t
size)
uint64_t rsize = size;
uint64_t naddr;
+ if (!size) {
+ return 0;
+ }
+
rsize += (allocator->page_size - 1);
rsize &= -allocator->page_size;
g_assert_cmpint((allocator->start + rsize), <=, allocator->end);
--
2.4.3
- [Qemu-devel] [PATCH v2 0/9] ahci: atapi qtests, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 1/9] ahci-test: fix memory leak, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 3/9] libqos/ahci: ATAPI identify, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 4/9] libqos/ahci: Switch to mutable properties, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 2/9] libqos/ahci: ATAPI support, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 8/9] qtest/ahci: ATAPI data tests, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 7/9] libqos/ahci: add ahci_exec, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 6/9] libqos/ahci: allow nondata commands for ahci_io variants, John Snow, 2016/01/08
- [Qemu-devel] [PATCH v2 5/9] libqos: allow zero-size allocations,
John Snow <=
- [Qemu-devel] [PATCH v2 9/9] libqos/ahci: organize header, John Snow, 2016/01/08
- Re: [Qemu-devel] [PATCH v2 0/9] ahci: atapi qtests, John Snow, 2016/01/08