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spapr/rtas: Print message from "ibm,os-term"

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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>
Message-Id: <20200203032044.118585-1-aik@ozlabs.ru>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Alexey Kardashevskiy 2020-02-03 14:20:44 +11:00 committed by David Gibson
parent 7afee874f1
commit a4c3791ae0
1 changed files with 7 additions and 0 deletions
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7
hw/ppc/spapr_rtas.c
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@ -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);