mirror of https://github.com/xemu-project/xemu.git
hw/arm: xlnx-versal-virt: Add AMD/Xilinx TRNG device
Connect the support for Versal True Random Number Generator (TRNG) device. Warning: unlike the TRNG component in a real device from the Versal device familiy, the connected TRNG model is not of cryptographic grade and is not intended for use cases when cryptograpically strong TRNG is needed. Signed-off-by: Tong Ho <tong.ho@amd.com> Reviewed-by: Francisco Iglesias <frasse.iglesias@gmail.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 20231031184611.3029156-3-tong.ho@amd.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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@ -482,6 +482,7 @@ config XLNX_VERSAL
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select XLNX_BBRAM
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select XLNX_EFUSE_VERSAL
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select XLNX_USB_SUBSYS
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select XLNX_VERSAL_TRNG
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config NPCM7XX
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bool
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@ -373,6 +373,21 @@ static void versal_create_rtc(Versal *s, qemu_irq *pic)
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qdev_get_gpio_in(DEVICE(&s->pmc.apb_irq_orgate), 0));
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}
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static void versal_create_trng(Versal *s, qemu_irq *pic)
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{
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SysBusDevice *sbd;
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MemoryRegion *mr;
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object_initialize_child(OBJECT(s), "trng", &s->pmc.trng,
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TYPE_XLNX_VERSAL_TRNG);
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sbd = SYS_BUS_DEVICE(&s->pmc.trng);
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sysbus_realize(sbd, &error_fatal);
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mr = sysbus_mmio_get_region(sbd, 0);
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memory_region_add_subregion(&s->mr_ps, MM_PMC_TRNG, mr);
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sysbus_connect_irq(sbd, 0, pic[VERSAL_TRNG_IRQ]);
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}
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static void versal_create_xrams(Versal *s, qemu_irq *pic)
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{
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int nr_xrams = ARRAY_SIZE(s->lpd.xram.ctrl);
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@ -909,6 +924,7 @@ static void versal_realize(DeviceState *dev, Error **errp)
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versal_create_sds(s, pic);
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versal_create_pmc_apb_irq_orgate(s, pic);
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versal_create_rtc(s, pic);
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versal_create_trng(s, pic);
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versal_create_xrams(s, pic);
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versal_create_bbram(s, pic);
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versal_create_efuse(s, pic);
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@ -30,6 +30,7 @@
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#include "hw/dma/xlnx_csu_dma.h"
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#include "hw/misc/xlnx-versal-crl.h"
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#include "hw/misc/xlnx-versal-pmc-iou-slcr.h"
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#include "hw/misc/xlnx-versal-trng.h"
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#include "hw/net/xlnx-versal-canfd.h"
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#include "hw/misc/xlnx-versal-cfu.h"
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#include "hw/misc/xlnx-versal-cframe-reg.h"
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@ -115,6 +116,7 @@ struct Versal {
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} iou;
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XlnxZynqMPRTC rtc;
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XlnxVersalTRng trng;
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XlnxBBRam bbram;
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XlnxEFuse efuse;
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XlnxVersalEFuseCtrl efuse_ctrl;
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@ -159,6 +161,7 @@ struct Versal {
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#define VERSAL_OSPI_IRQ 124
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#define VERSAL_SD0_IRQ_0 126
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#define VERSAL_EFUSE_IRQ 139
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#define VERSAL_TRNG_IRQ 141
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#define VERSAL_RTC_ALARM_IRQ 142
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#define VERSAL_RTC_SECONDS_IRQ 143
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@ -328,4 +331,6 @@ struct Versal {
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#define MM_PMC_CRP_SIZE 0x10000
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#define MM_PMC_RTC 0xf12a0000
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#define MM_PMC_RTC_SIZE 0x10000
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#define MM_PMC_TRNG 0xf1230000
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#define MM_PMC_TRNG_SIZE 0x10000
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#endif
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