Displaying 6 results from an estimated 6 matches for "bar_sz".
2012 Sep 26
3
[PATCH v3] xen/tools: Add 64 bits big bar support
...size is larger than 4G, it must access > 4G memory address.
This patch enable the 64bits big BAR support on hvmloader.
v3 changes from v2:
- Remain original print information
v2 changes from v1 as comments by Jan.
1) Set Dynamic MMIO high memory address instead of a fixed number 640G
2) Mask bar_sz earlier to avoid older code changes
3) Add bar size barrier to judge high memory resource
4) Clean up bar64_relocate code
Signed-off-by: Xiantao Zhang <xiantao.zhang@intel.com>
Signed-off-by: Xudong Hao <xudong.hao@intel.com>
---
tools/firmware/hvmloader/cacheattr.c | 25 +++++++----...
2008 Jan 18
7
[Patch] Make memory hole for PCI Express bigger and prevent roll-over
...irmware/hvmloader/hvmloader.c
--- a/tools/firmware/hvmloader/hvmloader.c Fri Jan 18 13:43:26 2008 +0000
+++ b/tools/firmware/hvmloader/hvmloader.c Fri Jan 18 15:47:01 2008 -0500
@@ -183,7 +183,7 @@ static void apic_setup(void)
static void pci_setup(void)
{
- uint32_t devfn, bar_reg, bar_data, bar_sz, cmd;
+ uint32_t devfn, bar_reg, bar_data, bar_sz, cmd, mem_base_test;
uint32_t *base, io_base = 0xc000, mem_base = HVM_BELOW_4G_MMIO_START;
uint16_t class, vendor_id, device_id;
unsigned int bar, pin, link, isa_irq;
@@ -254,16 +254,34 @@ static void pci_setup(void)...
2009 Jan 22
1
Mapping pci resources for graphics passthrough
Hi all,
I''ve been trying to understand the pci_setup function in hvmloader.c in Xen
unstable. I''m kinda lost at Line 328.
base = (resource->base + bar_sz - 1) & ~(bar_sz - 1)
I''d appreciate if someone could explain to me why base is calculated this
way. Specifically, I don''t understand the bitwise AND with the one''s
complements of "bar_sz-1".
The reason why I''m doing this is that I''m hopin...
2013 Mar 13
16
frequently ballooning results in qemu exit
We created a 64bit SLES11 SP1 guest, and then used a script to change memory (using mem-set command) periodically (in 1 second): set 1G, set 2G, set 1G, set 2G, and so on.
After a few minutes, we encountered QEMU exit due to SIGBUS error. Below is the call trace captured by gdb:
The call trace:
Program received signal SIGBUS, Bus error.
0x00007f94f74773d7 in memcpy () from /lib64/libc.so.6
(gdb)
2011 May 18
90
Patches for VGA-Passthrough XEN 4.2 unstable
Hello, I have been working on VGA-passthrough in the last month.
When Xen was at his version 3.5 there was a few patches to make this work for some graphic cards using the patches developed by Han Weidong and posted here (http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html) and the same patches posted file by file are here
2011 May 18
90
Patches for VGA-Passthrough XEN 4.2 unstable
Hello, I have been working on VGA-passthrough in the last month.
When Xen was at his version 3.5 there was a few patches to make this work for some graphic cards using the patches developed by Han Weidong and posted here (http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01176.html) and the same patches posted file by file are here