| Message ID | 1494426918-32737-2-git-send-email-bhupinder.thakur@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | None | expand |
On Wed, May 10, 2017 at 08:05:13PM +0530, Bhupinder Thakur wrote: > Allocate a new gfn to be used as a ring buffer between xenconsole > and Xen for sending/receiving pl011 data. > > Signed-off-by: Bhupinder Thakur <bhupinder.thakur@linaro.org> Acked-by: Wei Liu <wei.liu2@citrix.com>
On Wed, 10 May 2017, Bhupinder Thakur wrote: > Allocate a new gfn to be used as a ring buffer between xenconsole > and Xen for sending/receiving pl011 data. > > Signed-off-by: Bhupinder Thakur <bhupinder.thakur@linaro.org> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org> > --- > > Changes since v2: > > - Removed the DOMCTL call to set the GFN as now this information is passed > in the DOMCTL call to initialize vpl011 emulation. > > tools/libxc/include/xc_dom.h | 2 ++ > tools/libxc/xc_dom_arm.c | 5 ++++- > tools/libxc/xc_dom_boot.c | 2 ++ > 3 files changed, 8 insertions(+), 1 deletion(-) > > diff --git a/tools/libxc/include/xc_dom.h b/tools/libxc/include/xc_dom.h > index ce47058..6e06ef1 100644 > --- a/tools/libxc/include/xc_dom.h > +++ b/tools/libxc/include/xc_dom.h > @@ -216,6 +216,8 @@ struct xc_dom_image { > > /* Extra SMBIOS structures passed to HVMLOADER */ > struct xc_hvm_firmware_module smbios_module; > + > + xen_pfn_t vuart_gfn; > }; > > /* --- pluggable kernel loader ------------------------------------- */ > diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c > index e7d4bd0..c981b7a 100644 > --- a/tools/libxc/xc_dom_arm.c > +++ b/tools/libxc/xc_dom_arm.c > @@ -26,10 +26,11 @@ > #include "xg_private.h" > #include "xc_dom.h" > > -#define NR_MAGIC_PAGES 3 > +#define NR_MAGIC_PAGES 4 > #define CONSOLE_PFN_OFFSET 0 > #define XENSTORE_PFN_OFFSET 1 > #define MEMACCESS_PFN_OFFSET 2 > +#define VUART_PFN_OFFSET 3 > > #define LPAE_SHIFT 9 > > @@ -85,10 +86,12 @@ static int alloc_magic_pages(struct xc_dom_image *dom) > > dom->console_pfn = base + CONSOLE_PFN_OFFSET; > dom->xenstore_pfn = base + XENSTORE_PFN_OFFSET; > + dom->vuart_gfn = base + VUART_PFN_OFFSET; > > xc_clear_domain_page(dom->xch, dom->guest_domid, dom->console_pfn); > xc_clear_domain_page(dom->xch, dom->guest_domid, dom->xenstore_pfn); > xc_clear_domain_page(dom->xch, dom->guest_domid, base + MEMACCESS_PFN_OFFSET); > + xc_clear_domain_page(dom->xch, dom->guest_domid, base + VUART_PFN_OFFSET); > xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_CONSOLE_PFN, > dom->console_pfn); > xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_STORE_PFN, > diff --git a/tools/libxc/xc_dom_boot.c b/tools/libxc/xc_dom_boot.c > index c3b44dd..8a376d0 100644 > --- a/tools/libxc/xc_dom_boot.c > +++ b/tools/libxc/xc_dom_boot.c > @@ -226,6 +226,8 @@ int xc_dom_boot_image(struct xc_dom_image *dom) > return rc; > if ( (rc = clear_page(dom, dom->xenstore_pfn)) != 0 ) > return rc; > + if ( (rc = clear_page(dom, dom->vuart_gfn)) != 0 ) > + return rc; > > /* start info page */ > if ( dom->arch_hooks->start_info ) > -- > 2.7.4 > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > https://lists.xen.org/xen-devel >
diff --git a/tools/libxc/include/xc_dom.h b/tools/libxc/include/xc_dom.h index ce47058..6e06ef1 100644 --- a/tools/libxc/include/xc_dom.h +++ b/tools/libxc/include/xc_dom.h @@ -216,6 +216,8 @@ struct xc_dom_image { /* Extra SMBIOS structures passed to HVMLOADER */ struct xc_hvm_firmware_module smbios_module; + + xen_pfn_t vuart_gfn; }; /* --- pluggable kernel loader ------------------------------------- */ diff --git a/tools/libxc/xc_dom_arm.c b/tools/libxc/xc_dom_arm.c index e7d4bd0..c981b7a 100644 --- a/tools/libxc/xc_dom_arm.c +++ b/tools/libxc/xc_dom_arm.c @@ -26,10 +26,11 @@ #include "xg_private.h" #include "xc_dom.h" -#define NR_MAGIC_PAGES 3 +#define NR_MAGIC_PAGES 4 #define CONSOLE_PFN_OFFSET 0 #define XENSTORE_PFN_OFFSET 1 #define MEMACCESS_PFN_OFFSET 2 +#define VUART_PFN_OFFSET 3 #define LPAE_SHIFT 9 @@ -85,10 +86,12 @@ static int alloc_magic_pages(struct xc_dom_image *dom) dom->console_pfn = base + CONSOLE_PFN_OFFSET; dom->xenstore_pfn = base + XENSTORE_PFN_OFFSET; + dom->vuart_gfn = base + VUART_PFN_OFFSET; xc_clear_domain_page(dom->xch, dom->guest_domid, dom->console_pfn); xc_clear_domain_page(dom->xch, dom->guest_domid, dom->xenstore_pfn); xc_clear_domain_page(dom->xch, dom->guest_domid, base + MEMACCESS_PFN_OFFSET); + xc_clear_domain_page(dom->xch, dom->guest_domid, base + VUART_PFN_OFFSET); xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_CONSOLE_PFN, dom->console_pfn); xc_hvm_param_set(dom->xch, dom->guest_domid, HVM_PARAM_STORE_PFN, diff --git a/tools/libxc/xc_dom_boot.c b/tools/libxc/xc_dom_boot.c index c3b44dd..8a376d0 100644 --- a/tools/libxc/xc_dom_boot.c +++ b/tools/libxc/xc_dom_boot.c @@ -226,6 +226,8 @@ int xc_dom_boot_image(struct xc_dom_image *dom) return rc; if ( (rc = clear_page(dom, dom->xenstore_pfn)) != 0 ) return rc; + if ( (rc = clear_page(dom, dom->vuart_gfn)) != 0 ) + return rc; /* start info page */ if ( dom->arch_hooks->start_info )
Allocate a new gfn to be used as a ring buffer between xenconsole and Xen for sending/receiving pl011 data. Signed-off-by: Bhupinder Thakur <bhupinder.thakur@linaro.org> --- Changes since v2: - Removed the DOMCTL call to set the GFN as now this information is passed in the DOMCTL call to initialize vpl011 emulation. tools/libxc/include/xc_dom.h | 2 ++ tools/libxc/xc_dom_arm.c | 5 ++++- tools/libxc/xc_dom_boot.c | 2 ++ 3 files changed, 8 insertions(+), 1 deletion(-)