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Disable all interrupts during warm irqchip init.

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M mode is not expected to recieve any interrupts.
S mode interrupts shouldn't be enabled in M mode.

Signed-off-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Atish Patra
2018-12-21 21:31:12 -08:00
parent 88b173b33b
commit 8304ee9424
1 changed files with 6 additions and 1 deletions
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7
platform/common/irqchip/plic.c
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@@ -81,10 +81,15 @@ int plic_warm_irqchip_init(u32 target_hart,
if (plic_hart_count <= target_hart)
return -1;
if (m_cntx_id > -1) {
for (i = 0; i < ie_words; i++)
plic_set_ie(m_cntx_id, i, 0);
}
/* By default, enable all IRQs for S-mode of target HART */
if (s_cntx_id > -1) {
for (i = 0; i < ie_words; i++)
plic_set_ie(s_cntx_id, i, -1);
plic_set_ie(s_cntx_id, i, 0);
}
/* By default, enable M-mode threshold */