提交 · c9159fe9aa9abe24115ea4d16127179e9cb07e22 · openeuler / qemu

06 10月, 2012 1 次提交

由 Stefan Weil 提交于 10月 05, 2012

The entries for libhw* are no longer needed in .gitignore.

There is also no longer a difference between common-obj-y and
hw-obj-y, so one of those two macros is sufficient.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

c9159fe9

05 10月, 2012 31 次提交

rtc: implement century byte · b8994faf

由 Paolo Bonzini 提交于 10月 01, 2012

Implement the century byte in the RTC emulation, and test that it works.
This leads to some annoying compatibility code because we need to treat
a value of 2000 for the base_year property as "use the century byte
properly" (which would be a value of 0).

The century byte will now be always-zero, rather than always-20,
for the MIPS Magnum machine whose base_year is 1980.  Commit 42fc73a1
(Support epoch of 1980 in RTC emulation for MIPS Magnum, 2009-01-24)
correctly said:

    With an epoch of 1980 and a year of 2009, one could argue that [the
    century byte] should hold either 0, 1, 19 or 20.  NT 3.50 on MIPS
    does not read the century byte.

so I picked the simplest and most sensible implementation which is to
return 0 for 1980-2079, 1 for 2080-2179 and so on.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

b8994faf

rtc: map CMOS index 0x37 to 0x32 on read and writes · e67edb94

由 Paolo Bonzini 提交于 10月 01, 2012

QEMU's attempt to implement the century byte cover two possible places
for the byte.  A common one on modern chipsets is 0x32, but QEMU also
stores the value in 0x37 (apparently for IBM PS/2 compatibility---it's
only been 25 years).  To simplify the implementation of the century
byte, store it only at 0x32 but remap transparently 0x37 to 0x32 when
reading and writing from CMOS.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

e67edb94

rtc: fix overflow in mktimegm · b6db4aca

由 Paolo Bonzini 提交于 10月 01, 2012

When setting a date in 1980, Linux is actually disregarding the century
byte and setting the year to 2080.  This causes a year-2038 overflow
in mktimegm.  Fix this by doing the days-to-seconds computation in
64-bit math.
Reported-by: NLucas Meneghel Rodrigues <lookkas@gmail.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

b6db4aca

qtest: implement QTEST_STOP · e0fea6b1

由 Paolo Bonzini 提交于 10月 01, 2012

It is quite difficult to debug qtest test cases without extra wrapper
scripts for QEMU or similar.  This patch adds a simple environment
variable-based trigger that sends a STOP signal to the QEMU instance
under test, before attempting to connect to its QMP session.

This will block execution of the testcase and give time to attach a
debugger to the stopped QEMU process.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

e0fea6b1

qemu-barrier: Fix compiler version check for future gcc versions · 610b823e

由 Stefan Weil 提交于 10月 03, 2012

The current check will give a wrong result for gcc-5.x with x < 4.
Using QEMU_GNUC_PREREQ is simpler and fixes that issue.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

610b823e

doc: update HACKING wrt strncpy/pstrcpy · 9b9e3ec1