[PATCH 23/24] hvc_xen: allow dom0_write_console for HVM guests

On Wed, 1 Aug 2012, Konrad Rzeszutek Wilk wrote:

On Thu, Jul 26, 2012 at 04:34:05PM +0100, Stefano Stabellini wrote:

quoted

On ARM all guests are HVM guests, including Dom0.
Allow dom0_write_console to be called by an HVM domain.

Um, but xen_hvm_domain() != xen_pv_domain() so won't this return without
printing anything?

Nope, it would call dom0_write_console that issues a console hypercall.
However I am going to remove this patch and rely on the simple serial
emulator we have in Xen for early_printk stuff

quoted

Signed-off-by: Stefano Stabellini <redacted>
---
 drivers/tty/hvc/hvc_xen.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/hvc/hvc_xen.c b/drivers/tty/hvc/hvc_xen.c
index 3c04fb8..949edc2 100644
--- a/drivers/tty/hvc/hvc_xen.c
+++ b/drivers/tty/hvc/hvc_xen.c

@@ -616,12 +616,9 @@ static void xenboot_write_console(struct console *console, const char *string,
 	unsigned int linelen, off = 0;
 	const char *pos;
 
-	if (!xen_pv_domain())
-		return;
-
 	dom0_write_console(0, string, len);
 
-	if (xen_initial_domain())
+	if (!xen_pv_domain())
 		return;
 
 	domU_write_console(0, "(early) ", 8);

-- 
1.7.2.5