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From: Alexey Kardashevskiy <aik@ozlabs.ru>
To: qemu-devel@nongnu.org
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>,
	qemu-ppc@nongnu.org, David Gibson <david@gibson.dropbear.id.au>
Subject: [PATCH qemu] spapr/rtas: Print message from "ibm,os-term"
Date: Mon,  3 Feb 2020 14:20:44 +1100	[thread overview]
Message-ID: <20200203032044.118585-1-aik@ozlabs.ru> (raw)

The "ibm,os-term" RTAS call has a single parameter which is a pointer to
a message from the guest kernel about the termination cause; this prints
it.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
---
 hw/ppc/spapr_rtas.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/hw/ppc/spapr_rtas.c b/hw/ppc/spapr_rtas.c
index 883fe28465e6..656fdd221665 100644
--- a/hw/ppc/spapr_rtas.c
+++ b/hw/ppc/spapr_rtas.c
@@ -345,6 +345,13 @@ static void rtas_ibm_os_term(PowerPCCPU *cpu,
                             target_ulong args,
                             uint32_t nret, target_ulong rets)
 {
+    target_ulong msgaddr = rtas_ld(args, 0);
+    char msg[512];
+
+    cpu_physical_memory_read(msgaddr, msg, sizeof(msg) - 1);
+    msg[sizeof(msg) - 1] = 0;
+
+    error_report("OS terminated: %s", msg);
     qemu_system_guest_panicked(NULL);
 
     rtas_st(rets, 0, RTAS_OUT_SUCCESS);
-- 
2.17.1



             reply	other threads:[~2020-02-03  3:21 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-03  3:20 Alexey Kardashevskiy [this message]
2020-02-03 20:51 ` [PATCH qemu] spapr/rtas: Print message from "ibm,os-term" Daniel Henrique Barboza
2020-02-04  5:58 ` David Gibson

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