From: Ross Philipson <Ross.Philipson@citrix.com>
To: "xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>
Subject: [PATCH 03/07] HVM firmware passthrough: hvmloader init module support
Date: Mon, 19 Mar 2012 18:04:07 -0400 [thread overview]
Message-ID: <831D55AF5A11D64C9B4B43F59EEBF720724FB1BAAB@FTLPMAILBOX02.citrite.net> (raw)
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Fetch module set base address from ECX:EDX and call the module
support initialization routine.
Signed-off-by: Ross Philipson <ross.philipson@citrix.com>
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# HG changeset patch
# Parent 45d2dcc22c1824d8f1b1a26ac1bf3ea3f7e270b2
Fetch module set base address from ECX:EDX and call the module
support initialization routine.
Signed-off-by: Ross Philipson <ross.philipson@citrix.com>
diff -r 45d2dcc22c18 tools/firmware/hvmloader/hvmloader.c
--- a/tools/firmware/hvmloader/hvmloader.c Mon Mar 19 16:42:36 2012 -0400
+++ b/tools/firmware/hvmloader/hvmloader.c Mon Mar 19 16:45:12 2012 -0400
@@ -23,6 +23,7 @@
#include "util.h"
#include "hypercall.h"
#include "config.h"
+#include "modules.h"
#include "pci_regs.h"
#include "apic_regs.h"
#include "acpi/acpi2_0.h"
@@ -257,6 +258,17 @@ int main(void)
{
const struct bios_config *bios;
int acpi_enabled;
+ uint32_t mod_lo, mod_hi;
+ uint64_t mod_base;
+
+ /* First get the modules base address passed in ECX:EDC and init
+ * module support.
+ */
+ asm volatile ( "mov %%ecx, %0;" : "=r"(mod_hi));
+ asm volatile ( "mov %%edx, %0;" : "=r"(mod_lo));
+ mod_base = mod_hi;
+ mod_base = (0xFFFFFFFF00000000 & (mod_base << 32)) | mod_lo;
+ init_hvm_modules(mod_base);
/* Initialise hypercall stubs with RET, rendering them no-ops. */
memset((void *)HYPERCALL_PHYSICAL_ADDRESS, 0xc3 /* RET */, PAGE_SIZE);
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next reply other threads:[~2012-03-19 22:04 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-03-19 22:04 Ross Philipson [this message]
2012-04-04 9:30 ` [PATCH 03/07] HVM firmware passthrough: hvmloader init module support Ian Campbell
2012-04-04 9:47 ` Tim Deegan
2012-04-04 9:50 ` Ian Campbell
2012-04-04 19:30 ` Ross Philipson
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