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xen: build on ARM

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Collection of fixes to build QEMU with Xen support on ARM:
- use xenstore_read_fe_uint64 to retrieve the page-ref (xenfb);
- use xen_pfn_t instead of unsigned long in xenfb;
- unsigned long/xenpfn_t in xen_remove_from_physmap;
- in xen-mapcache.c use HOST_LONG_BITS to check for QEMU's address space
size.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Stefano Stabellini 2013-12-18 19:17:32 +00:00
parent 4aba9eb138
commit 643f593224
3 changed files with 13 additions and 11 deletions
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18
hw/display/xenfb.c
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@ -93,10 +93,12 @@ struct XenFB {
static int common_bind(struct common *c) static int common_bind(struct common *c)
{ {
int mfn; uint64_t mfn;
if (xenstore_read_fe_int(&c->xendev, "page-ref", &mfn) == -1) if (xenstore_read_fe_uint64(&c->xendev, "page-ref", &mfn) == -1)
return -1; return -1;
assert(mfn == (xen_pfn_t)mfn);
if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1) if (xenstore_read_fe_int(&c->xendev, "event-channel", &c->xendev.remote_port) == -1)
return -1; return -1;
@ -107,7 +109,7 @@ static int common_bind(struct common *c)
return -1; return -1;
xen_be_bind_evtchn(&c->xendev); xen_be_bind_evtchn(&c->xendev);
xen_be_printf(&c->xendev, 1, "ring mfn %d, remote-port %d, local-port %d\n", xen_be_printf(&c->xendev, 1, "ring mfn %"PRIx64", remote-port %d, local-port %d\n",
mfn, c->xendev.remote_port, c->xendev.local_port); mfn, c->xendev.remote_port, c->xendev.local_port);
return 0; return 0;
@ -409,7 +411,7 @@ static void input_event(struct XenDevice *xendev)
/* -------------------------------------------------------------------- */ /* -------------------------------------------------------------------- */
static void xenfb_copy_mfns(int mode, int count, unsigned long *dst, void *src) static void xenfb_copy_mfns(int mode, int count, xen_pfn_t *dst, void *src)
{ {
uint32_t *src32 = src; uint32_t *src32 = src;
uint64_t *src64 = src; uint64_t *src64 = src;
@ -424,8 +426,8 @@ static int xenfb_map_fb(struct XenFB *xenfb)
struct xenfb_page *page = xenfb->c.page; struct xenfb_page *page = xenfb->c.page;
char *protocol = xenfb->c.xendev.protocol; char *protocol = xenfb->c.xendev.protocol;
int n_fbdirs; int n_fbdirs;
unsigned long *pgmfns = NULL; xen_pfn_t *pgmfns = NULL;
unsigned long *fbmfns = NULL; xen_pfn_t *fbmfns = NULL;
void *map, *pd; void *map, *pd;
int mode, ret = -1; int mode, ret = -1;
@ -483,8 +485,8 @@ static int xenfb_map_fb(struct XenFB *xenfb)
n_fbdirs = xenfb->fbpages * mode / 8; n_fbdirs = xenfb->fbpages * mode / 8;
n_fbdirs = (n_fbdirs + (XC_PAGE_SIZE - 1)) / XC_PAGE_SIZE; n_fbdirs = (n_fbdirs + (XC_PAGE_SIZE - 1)) / XC_PAGE_SIZE;
pgmfns = g_malloc0(sizeof(unsigned long) * n_fbdirs); pgmfns = g_malloc0(sizeof(xen_pfn_t) * n_fbdirs);
fbmfns = g_malloc0(sizeof(unsigned long) * xenfb->fbpages); fbmfns = g_malloc0(sizeof(xen_pfn_t) * xenfb->fbpages);
xenfb_copy_mfns(mode, n_fbdirs, pgmfns, pd); xenfb_copy_mfns(mode, n_fbdirs, pgmfns, pd);
map = xc_map_foreign_pages(xen_xc, xenfb->c.xendev.dom, map = xc_map_foreign_pages(xen_xc, xenfb->c.xendev.dom,

2
xen-hvm.c
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@ -390,7 +390,7 @@ static int xen_remove_from_physmap(XenIOState *state,
start_addr >>= TARGET_PAGE_BITS; start_addr >>= TARGET_PAGE_BITS;
phys_offset >>= TARGET_PAGE_BITS; phys_offset >>= TARGET_PAGE_BITS;
for (i = 0; i < size; i++) { for (i = 0; i < size; i++) {
unsigned long idx = start_addr + i; xen_pfn_t idx = start_addr + i;
xen_pfn_t gpfn = phys_offset + i; xen_pfn_t gpfn = phys_offset + i;
rc = xc_domain_add_to_physmap(xen_xc, xen_domid, XENMAPSPACE_gmfn, idx, gpfn); rc = xc_domain_add_to_physmap(xen_xc, xen_domid, XENMAPSPACE_gmfn, idx, gpfn);

4
xen-mapcache.c
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@ -33,10 +33,10 @@
# define DPRINTF(fmt, ...) do { } while (0) # define DPRINTF(fmt, ...) do { } while (0)
#endif #endif
#if defined(__i386__) #if HOST_LONG_BITS == 32
# define MCACHE_BUCKET_SHIFT 16 # define MCACHE_BUCKET_SHIFT 16
# define MCACHE_MAX_SIZE (1UL<<31) /* 2GB Cap */ # define MCACHE_MAX_SIZE (1UL<<31) /* 2GB Cap */
#elif defined(__x86_64__) #else
# define MCACHE_BUCKET_SHIFT 20 # define MCACHE_BUCKET_SHIFT 20
# define MCACHE_MAX_SIZE (1UL<<35) /* 32GB Cap */ # define MCACHE_MAX_SIZE (1UL<<35) /* 32GB Cap */
#endif #endif