KVM: SEV: Do cache maintenance on the source VM during intra-host migrationgrafted

Manually perform cache maintenance on the source VM during intra-host
migration to ensure no stale data is left in CPU caches after the VM is
destroyed.  Because the source VM is "converted" to a non-SEV VM, KVM's
memory reclaim flows won't trigger cache maintenance, e.g. when all guest
memory is reclaimed in response to detaching from the mmu_notifier.

Note, relying on the destination VM to do cache maintenance isn't an option
as KVM doesn't require identical guest memory configurations, i.e. the
source VM may have access to memory that the destination VM does not.
Enforcing equivalent memory configurations is infeasible, as it would
require a *deep* comparison of memslots, e.g. to verify that not only are
the memslot identical, but what the memslots point at is also identical.

Fixes: b56639318bb2 ("KVM: SEV: Add support for SEV intra host migration")
Cc: stable@vger.kernel.org
Reported-by: Stefan Teodorescu <fane@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20260923163721.1584779-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 429 insertions, 0 deletions

diff --git a/drivers/reset/reset-eic7700.c b/drivers/reset/reset-eic7700.c
new file mode 100644
index 000000000..b72283b18
--- /dev/null
+++ b/drivers/reset/reset-eic7700.c
@@ -0,0 +1,429 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2025, Beijing ESWIN Computing Technology Co., Ltd..
+ * All rights reserved.
+ *
+ * ESWIN Reset Driver
+ *
+ * Authors:
+ *	Yifeng Huang <huangyifeng@eswincomputing.com>
+ *	Xuyang Dong <dongxuyang@eswincomputing.com>
+ */
+
+#include <linux/err.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include <linux/reset-controller.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include <dt-bindings/reset/eswin,eic7700-reset.h>
+
+#define SYSCRG_CLEAR_BOOT_INFO_OFFSET 0xC
+#define CLEAR_BOOT_FLAG_BIT BIT(0)
+#define SYSCRG_RESET_OFFSET 0x100
+
+/**
+ * struct eic7700_reset_data - reset controller information structure
+ * @rcdev: reset controller entity
+ * @regmap: regmap handle containing the memory-mapped reset registers
+ */
+struct eic7700_reset_data {
+	struct reset_controller_dev rcdev;
+	struct regmap *regmap;
+};
+
+static const struct regmap_config eic7700_regmap_config = {
+	.reg_bits = 32,
+	.val_bits = 32,
+	.reg_stride = 4,
+	.max_register = 0x1fc,
+};
+
+struct eic7700_reg {
+	u32 reg;
+	u32 bit;
+};
+
+static inline struct eic7700_reset_data *
+to_eic7700_reset_data(struct reset_controller_dev *rcdev)
+{
+	return container_of(rcdev, struct eic7700_reset_data, rcdev);
+}
+
+#define EIC7700_RESET(id, reg, bit)[id] = \
+		{ SYSCRG_RESET_OFFSET + (reg) * sizeof(u32), BIT(bit) }
+
+/* mapping table for reset ID to register offset and reset bit */
+static const struct eic7700_reg eic7700_reset[] = {
+	EIC7700_RESET(EIC7700_RESET_NOC_NSP, 0, 0),
+	EIC7700_RESET(EIC7700_RESET_NOC_CFG, 0, 1),
+	EIC7700_RESET(EIC7700_RESET_RNOC_NSP, 0, 2),
+	EIC7700_RESET(EIC7700_RESET_SNOC_TCU, 0, 3),
+	EIC7700_RESET(EIC7700_RESET_SNOC_U84, 0, 4),
+	EIC7700_RESET(EIC7700_RESET_SNOC_PCIE_XSR, 0, 5),
+	EIC7700_RESET(EIC7700_RESET_SNOC_PCIE_XMR, 0, 6),
+	EIC7700_RESET(EIC7700_RESET_SNOC_PCIE_PR, 0, 7),
+	EIC7700_RESET(EIC7700_RESET_SNOC_NPU, 0, 8),
+	EIC7700_RESET(EIC7700_RESET_SNOC_JTAG, 0, 9),
+	EIC7700_RESET(EIC7700_RESET_SNOC_DSP, 0, 10),
+	EIC7700_RESET(EIC7700_RESET_SNOC_DDRC1_P2, 0, 11),
+	EIC7700_RESET(EIC7700_RESET_SNOC_DDRC1_P1, 0, 12),
+	EIC7700_RESET(EIC7700_RESET_SNOC_DDRC0_P2, 0, 13),
+	EIC7700_RESET(EIC7700_RESET_SNOC_DDRC0_P1, 0, 14),
+	EIC7700_RESET(EIC7700_RESET_SNOC_D2D, 0, 15),
+	EIC7700_RESET(EIC7700_RESET_SNOC_AON, 0, 16),
+	EIC7700_RESET(EIC7700_RESET_GPU_AXI, 1, 0),
+	EIC7700_RESET(EIC7700_RESET_GPU_CFG, 1, 1),
+	EIC7700_RESET(EIC7700_RESET_GPU_GRAY, 1, 2),
+	EIC7700_RESET(EIC7700_RESET_GPU_JONES, 1, 3),
+	EIC7700_RESET(EIC7700_RESET_GPU_SPU, 1, 4),
+	EIC7700_RESET(EIC7700_RESET_DSP_AXI, 2, 0),
+	EIC7700_RESET(EIC7700_RESET_DSP_CFG, 2, 1),
+	EIC7700_RESET(EIC7700_RESET_DSP_DIV4, 2, 2),
+	EIC7700_RESET(EIC7700_RESET_DSP_DIV0, 2, 4),
+	EIC7700_RESET(EIC7700_RESET_DSP_DIV1, 2, 5),
+	EIC7700_RESET(EIC7700_RESET_DSP_DIV2, 2, 6),
+	EIC7700_RESET(EIC7700_RESET_DSP_DIV3, 2, 7),
+	EIC7700_RESET(EIC7700_RESET_D2D_AXI, 3, 0),
+	EIC7700_RESET(EIC7700_RESET_D2D_CFG, 3, 1),
+	EIC7700_RESET(EIC7700_RESET_D2D_PRST, 3, 2),
+	EIC7700_RESET(EIC7700_RESET_D2D_RAW_PCS, 3, 4),
+	EIC7700_RESET(EIC7700_RESET_D2D_RX, 3, 5),
+	EIC7700_RESET(EIC7700_RESET_D2D_TX, 3, 6),
+	EIC7700_RESET(EIC7700_RESET_D2D_CORE, 3, 7),
+	EIC7700_RESET(EIC7700_RESET_DDR1_ARST, 4, 0),
+	EIC7700_RESET(EIC7700_RESET_DDR1_TRACE, 4, 6),
+	EIC7700_RESET(EIC7700_RESET_DDR0_ARST, 4, 16),
+	EIC7700_RESET(EIC7700_RESET_DDR_CFG, 4, 21),
+	EIC7700_RESET(EIC7700_RESET_DDR0_TRACE, 4, 22),
+	EIC7700_RESET(EIC7700_RESET_DDR_CORE, 4, 23),
+	EIC7700_RESET(EIC7700_RESET_DDR_PRST, 4, 26),
+	EIC7700_RESET(EIC7700_RESET_TCU_AXI, 5, 0),
+	EIC7700_RESET(EIC7700_RESET_TCU_CFG, 5, 1),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU0, 5, 4),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU1, 5, 5),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU2, 5, 6),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU3, 5, 7),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU4, 5, 8),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU5, 5, 9),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU6, 5, 10),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU7, 5, 11),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU8, 5, 12),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU9, 5, 13),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU10, 5, 14),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU11, 5, 15),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU12, 5, 16),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU13, 5, 17),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU14, 5, 18),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU15, 5, 19),
+	EIC7700_RESET(EIC7700_RESET_TCU_TBU16, 5, 20),
+	EIC7700_RESET(EIC7700_RESET_NPU_AXI, 6, 0),
+	EIC7700_RESET(EIC7700_RESET_NPU_CFG, 6, 1),
+	EIC7700_RESET(EIC7700_RESET_NPU_CORE, 6, 2),
+	EIC7700_RESET(EIC7700_RESET_NPU_E31CORE, 6, 3),
+	EIC7700_RESET(EIC7700_RESET_NPU_E31BUS, 6, 4),
+	EIC7700_RESET(EIC7700_RESET_NPU_E31DBG, 6, 5),
+	EIC7700_RESET(EIC7700_RESET_NPU_LLC, 6, 6),
+	EIC7700_RESET(EIC7700_RESET_HSP_AXI, 7, 0),
+	EIC7700_RESET(EIC7700_RESET_HSP_CFG, 7, 1),
+	EIC7700_RESET(EIC7700_RESET_HSP_POR, 7, 2),
+	EIC7700_RESET(EIC7700_RESET_MSHC0_PHY, 7, 3),
+	EIC7700_RESET(EIC7700_RESET_MSHC1_PHY, 7, 4),
+	EIC7700_RESET(EIC7700_RESET_MSHC2_PHY, 7, 5),
+	EIC7700_RESET(EIC7700_RESET_MSHC0_TXRX, 7, 6),
+	EIC7700_RESET(EIC7700_RESET_MSHC1_TXRX, 7, 7),
+	EIC7700_RESET(EIC7700_RESET_MSHC2_TXRX, 7, 8),
+	EIC7700_RESET(EIC7700_RESET_SATA_ASIC0, 7, 9),
+	EIC7700_RESET(EIC7700_RESET_SATA_OOB, 7, 10),
+	EIC7700_RESET(EIC7700_RESET_SATA_PMALIVE, 7, 11),
+	EIC7700_RESET(EIC7700_RESET_SATA_RBC, 7, 12),
+	EIC7700_RESET(EIC7700_RESET_DMA0, 7, 13),
+	EIC7700_RESET(EIC7700_RESET_HSP_DMA, 7, 14),
+	EIC7700_RESET(EIC7700_RESET_USB0_VAUX, 7, 15),
+	EIC7700_RESET(EIC7700_RESET_USB1_VAUX, 7, 16),
+	EIC7700_RESET(EIC7700_RESET_HSP_SD1_PRST, 7, 17),
+	EIC7700_RESET(EIC7700_RESET_HSP_SD0_PRST, 7, 18),
+	EIC7700_RESET(EIC7700_RESET_HSP_EMMC_PRST, 7, 19),
+	EIC7700_RESET(EIC7700_RESET_HSP_DMA_PRST, 7, 20),
+	EIC7700_RESET(EIC7700_RESET_HSP_SD1_ARST, 7, 21),
+	EIC7700_RESET(EIC7700_RESET_HSP_SD0_ARST, 7, 22),
+	EIC7700_RESET(EIC7700_RESET_HSP_EMMC_ARST, 7, 23),
+	EIC7700_RESET(EIC7700_RESET_HSP_DMA_ARST, 7, 24),
+	EIC7700_RESET(EIC7700_RESET_HSP_ETH1_ARST, 7, 25),
+	EIC7700_RESET(EIC7700_RESET_HSP_ETH0_ARST, 7, 26),
+	EIC7700_RESET(EIC7700_RESET_SATA_ARST, 7, 27),
+	EIC7700_RESET(EIC7700_RESET_PCIE_CFG, 8, 0),
+	EIC7700_RESET(EIC7700_RESET_PCIE_POWEUP, 8, 1),
+	EIC7700_RESET(EIC7700_RESET_PCIE_PERST, 8, 2),
+	EIC7700_RESET(EIC7700_RESET_I2C0, 9, 0),
+	EIC7700_RESET(EIC7700_RESET_I2C1, 9, 1),
+	EIC7700_RESET(EIC7700_RESET_I2C2, 9, 2),
+	EIC7700_RESET(EIC7700_RESET_I2C3, 9, 3),
+	EIC7700_RESET(EIC7700_RESET_I2C4, 9, 4),
+	EIC7700_RESET(EIC7700_RESET_I2C5, 9, 5),
+	EIC7700_RESET(EIC7700_RESET_I2C6, 9, 6),
+	EIC7700_RESET(EIC7700_RESET_I2C7, 9, 7),
+	EIC7700_RESET(EIC7700_RESET_I2C8, 9, 8),
+	EIC7700_RESET(EIC7700_RESET_I2C9, 9, 9),
+	EIC7700_RESET(EIC7700_RESET_FAN, 10, 0),
+	EIC7700_RESET(EIC7700_RESET_PVT0, 11, 0),
+	EIC7700_RESET(EIC7700_RESET_PVT1, 11, 1),
+	EIC7700_RESET(EIC7700_RESET_MBOX0, 12, 0),
+	EIC7700_RESET(EIC7700_RESET_MBOX1, 12, 1),
+	EIC7700_RESET(EIC7700_RESET_MBOX2, 12, 2),
+	EIC7700_RESET(EIC7700_RESET_MBOX3, 12, 3),
+	EIC7700_RESET(EIC7700_RESET_MBOX4, 12, 4),
+	EIC7700_RESET(EIC7700_RESET_MBOX5, 12, 5),
+	EIC7700_RESET(EIC7700_RESET_MBOX6, 12, 6),
+	EIC7700_RESET(EIC7700_RESET_MBOX7, 12, 7),
+	EIC7700_RESET(EIC7700_RESET_MBOX8, 12, 8),
+	EIC7700_RESET(EIC7700_RESET_MBOX9, 12, 9),
+	EIC7700_RESET(EIC7700_RESET_MBOX10, 12, 10),
+	EIC7700_RESET(EIC7700_RESET_MBOX11, 12, 11),
+	EIC7700_RESET(EIC7700_RESET_MBOX12, 12, 12),
+	EIC7700_RESET(EIC7700_RESET_MBOX13, 12, 13),
+	EIC7700_RESET(EIC7700_RESET_MBOX14, 12, 14),
+	EIC7700_RESET(EIC7700_RESET_MBOX15, 12, 15),
+	EIC7700_RESET(EIC7700_RESET_UART0, 13, 0),
+	EIC7700_RESET(EIC7700_RESET_UART1, 13, 1),
+	EIC7700_RESET(EIC7700_RESET_UART2, 13, 2),
+	EIC7700_RESET(EIC7700_RESET_UART3, 13, 3),
+	EIC7700_RESET(EIC7700_RESET_UART4, 13, 4),
+	EIC7700_RESET(EIC7700_RESET_GPIO0, 14, 0),
+	EIC7700_RESET(EIC7700_RESET_GPIO1, 14, 1),
+	EIC7700_RESET(EIC7700_RESET_TIMER, 15, 0),
+	EIC7700_RESET(EIC7700_RESET_SSI0, 16, 0),
+	EIC7700_RESET(EIC7700_RESET_SSI1, 16, 1),
+	EIC7700_RESET(EIC7700_RESET_WDT0, 17, 0),
+	EIC7700_RESET(EIC7700_RESET_WDT1, 17, 1),
+	EIC7700_RESET(EIC7700_RESET_WDT2, 17, 2),
+	EIC7700_RESET(EIC7700_RESET_WDT3, 17, 3),
+	EIC7700_RESET(EIC7700_RESET_LSP_CFG, 18, 0),
+	EIC7700_RESET(EIC7700_RESET_U84_CORE0, 19, 0),
+	EIC7700_RESET(EIC7700_RESET_U84_CORE1, 19, 1),
+	EIC7700_RESET(EIC7700_RESET_U84_CORE2, 19, 2),
+	EIC7700_RESET(EIC7700_RESET_U84_CORE3, 19, 3),
+	EIC7700_RESET(EIC7700_RESET_U84_BUS, 19, 4),
+	EIC7700_RESET(EIC7700_RESET_U84_DBG, 19, 5),
+	EIC7700_RESET(EIC7700_RESET_U84_TRACECOM, 19, 6),
+	EIC7700_RESET(EIC7700_RESET_U84_TRACE0, 19, 8),
+	EIC7700_RESET(EIC7700_RESET_U84_TRACE1, 19, 9),
+	EIC7700_RESET(EIC7700_RESET_U84_TRACE2, 19, 10),
+	EIC7700_RESET(EIC7700_RESET_U84_TRACE3, 19, 11),
+	EIC7700_RESET(EIC7700_RESET_SCPU_CORE, 20, 0),
+	EIC7700_RESET(EIC7700_RESET_SCPU_BUS, 20, 1),
+	EIC7700_RESET(EIC7700_RESET_SCPU_DBG, 20, 2),
+	EIC7700_RESET(EIC7700_RESET_LPCPU_CORE, 21, 0),
+	EIC7700_RESET(EIC7700_RESET_LPCPU_BUS, 21, 1),
+	EIC7700_RESET(EIC7700_RESET_LPCPU_DBG, 21, 2),
+	EIC7700_RESET(EIC7700_RESET_VC_CFG, 22, 0),
+	EIC7700_RESET(EIC7700_RESET_VC_AXI, 22, 1),
+	EIC7700_RESET(EIC7700_RESET_VC_MONCFG, 22, 2),
+	EIC7700_RESET(EIC7700_RESET_JD_CFG, 23, 0),
+	EIC7700_RESET(EIC7700_RESET_JD_AXI, 23, 1),
+	EIC7700_RESET(EIC7700_RESET_JE_CFG, 24, 0),
+	EIC7700_RESET(EIC7700_RESET_JE_AXI, 24, 1),
+	EIC7700_RESET(EIC7700_RESET_VD_CFG, 25, 0),
+	EIC7700_RESET(EIC7700_RESET_VD_AXI, 25, 1),
+	EIC7700_RESET(EIC7700_RESET_VE_AXI, 26, 0),
+	EIC7700_RESET(EIC7700_RESET_VE_CFG, 26, 1),
+	EIC7700_RESET(EIC7700_RESET_G2D_CORE, 27, 0),
+	EIC7700_RESET(EIC7700_RESET_G2D_CFG, 27, 1),
+	EIC7700_RESET(EIC7700_RESET_G2D_AXI, 27, 2),
+	EIC7700_RESET(EIC7700_RESET_VI_AXI, 28, 0),
+	EIC7700_RESET(EIC7700_RESET_VI_CFG, 28, 1),
+	EIC7700_RESET(EIC7700_RESET_VI_DWE, 28, 2),
+	EIC7700_RESET(EIC7700_RESET_DVP, 29, 0),
+	EIC7700_RESET(EIC7700_RESET_ISP0, 30, 0),
+	EIC7700_RESET(EIC7700_RESET_ISP1, 31, 0),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR0, 32, 0),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR1, 32, 1),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR2, 32, 2),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR3, 32, 3),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR4, 32, 4),
+	EIC7700_RESET(EIC7700_RESET_SHUTTR5, 32, 5),
+	EIC7700_RESET(EIC7700_RESET_VO_MIPI, 33, 0),
+	EIC7700_RESET(EIC7700_RESET_VO_PRST, 33, 1),
+	EIC7700_RESET(EIC7700_RESET_VO_HDMI_PRST, 33, 3),
+	EIC7700_RESET(EIC7700_RESET_VO_HDMI_PHY, 33, 4),
+	EIC7700_RESET(EIC7700_RESET_VO_HDMI, 33, 5),
+	EIC7700_RESET(EIC7700_RESET_VO_I2S, 34, 0),
+	EIC7700_RESET(EIC7700_RESET_VO_I2S_PRST, 34, 1),
+	EIC7700_RESET(EIC7700_RESET_VO_AXI, 35, 0),
+	EIC7700_RESET(EIC7700_RESET_VO_CFG, 35, 1),
+	EIC7700_RESET(EIC7700_RESET_VO_DC, 35, 2),
+	EIC7700_RESET(EIC7700_RESET_VO_DC_PRST, 35, 3),
+	EIC7700_RESET(EIC7700_RESET_BOOTSPI_HRST, 36, 0),
+	EIC7700_RESET(EIC7700_RESET_BOOTSPI, 36, 1),
+	EIC7700_RESET(EIC7700_RESET_ANO1, 37, 0),
+	EIC7700_RESET(EIC7700_RESET_ANO0, 38, 0),
+	EIC7700_RESET(EIC7700_RESET_DMA1_ARST, 39, 0),
+	EIC7700_RESET(EIC7700_RESET_DMA1_HRST, 39, 1),
+	EIC7700_RESET(EIC7700_RESET_FPRT, 40, 0),
+	EIC7700_RESET(EIC7700_RESET_HBLOCK, 41, 0),
+	EIC7700_RESET(EIC7700_RESET_SECSR, 42, 0),
+	EIC7700_RESET(EIC7700_RESET_OTP, 43, 0),
+	EIC7700_RESET(EIC7700_RESET_PKA, 44, 0),
+	EIC7700_RESET(EIC7700_RESET_SPACC, 45, 0),
+	EIC7700_RESET(EIC7700_RESET_TRNG, 46, 0),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_0, 48, 0),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_1, 48, 1),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_2, 48, 2),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_3, 48, 3),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_4, 48, 4),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_5, 48, 5),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_6, 48, 6),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_7, 48, 7),
+	EIC7700_RESET(EIC7700_RESET_TIMER0_N, 48, 8),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_0, 49, 0),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_1, 49, 1),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_2, 49, 2),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_3, 49, 3),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_4, 49, 4),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_5, 49, 5),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_6, 49, 6),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_7, 49, 7),
+	EIC7700_RESET(EIC7700_RESET_TIMER1_N, 49, 8),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_0, 50, 0),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_1, 50, 1),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_2, 50, 2),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_3, 50, 3),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_4, 50, 4),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_5, 50, 5),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_6, 50, 6),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_7, 50, 7),
+	EIC7700_RESET(EIC7700_RESET_TIMER2_N, 50, 8),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_0, 51, 0),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_1, 51, 1),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_2, 51, 2),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_3, 51, 3),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_4, 51, 4),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_5, 51, 5),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_6, 51, 6),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_7, 51, 7),
+	EIC7700_RESET(EIC7700_RESET_TIMER3_N, 51, 8),
+	EIC7700_RESET(EIC7700_RESET_RTC, 52, 0),
+	EIC7700_RESET(EIC7700_RESET_MNOC_SNOC_NSP, 53, 0),
+	EIC7700_RESET(EIC7700_RESET_MNOC_VC, 53, 1),
+	EIC7700_RESET(EIC7700_RESET_MNOC_CFG, 53, 2),
+	EIC7700_RESET(EIC7700_RESET_MNOC_HSP, 53, 3),
+	EIC7700_RESET(EIC7700_RESET_MNOC_GPU, 53, 4),
+	EIC7700_RESET(EIC7700_RESET_MNOC_DDRC1_P3, 53, 5),
+	EIC7700_RESET(EIC7700_RESET_MNOC_DDRC0_P3, 53, 6),
+	EIC7700_RESET(EIC7700_RESET_RNOC_VO, 54, 0),
+	EIC7700_RESET(EIC7700_RESET_RNOC_VI, 54, 1),
+	EIC7700_RESET(EIC7700_RESET_RNOC_SNOC_NSP, 54, 2),
+	EIC7700_RESET(EIC7700_RESET_RNOC_CFG, 54, 3),
+	EIC7700_RESET(EIC7700_RESET_MNOC_DDRC1_P4, 54, 4),
+	EIC7700_RESET(EIC7700_RESET_MNOC_DDRC0_P4, 54, 5),
+	EIC7700_RESET(EIC7700_RESET_CNOC_VO_CFG, 55, 0),
+	EIC7700_RESET(EIC7700_RESET_CNOC_VI_CFG, 55, 1),
+	EIC7700_RESET(EIC7700_RESET_CNOC_VC_CFG, 55, 2),
+	EIC7700_RESET(EIC7700_RESET_CNOC_TCU_CFG, 55, 3),
+	EIC7700_RESET(EIC7700_RESET_CNOC_PCIE_CFG, 55, 4),
+	EIC7700_RESET(EIC7700_RESET_CNOC_NPU_CFG, 55, 5),
+	EIC7700_RESET(EIC7700_RESET_CNOC_LSP_CFG, 55, 6),
+	EIC7700_RESET(EIC7700_RESET_CNOC_HSP_CFG, 55, 7),
+	EIC7700_RESET(EIC7700_RESET_CNOC_GPU_CFG, 55, 8),
+	EIC7700_RESET(EIC7700_RESET_CNOC_DSPT_CFG, 55, 9),
+	EIC7700_RESET(EIC7700_RESET_CNOC_DDRT1_CFG, 55, 10),
+	EIC7700_RESET(EIC7700_RESET_CNOC_DDRT0_CFG, 55, 11),
+	EIC7700_RESET(EIC7700_RESET_CNOC_D2D_CFG, 55, 12),
+	EIC7700_RESET(EIC7700_RESET_CNOC_CFG, 55, 13),
+	EIC7700_RESET(EIC7700_RESET_CNOC_CLMM_CFG, 55, 14),
+	EIC7700_RESET(EIC7700_RESET_CNOC_AON_CFG, 55, 15),
+	EIC7700_RESET(EIC7700_RESET_LNOC_CFG, 56, 0),
+	EIC7700_RESET(EIC7700_RESET_LNOC_NPU_LLC, 56, 1),
+	EIC7700_RESET(EIC7700_RESET_LNOC_DDRC1_P0, 56, 2),
+	EIC7700_RESET(EIC7700_RESET_LNOC_DDRC0_P0, 56, 3),
+};
+
+static int eic7700_reset_assert(struct reset_controller_dev *rcdev,
+				unsigned long id)
+{
+	struct eic7700_reset_data *data = to_eic7700_reset_data(rcdev);
+
+	return regmap_clear_bits(data->regmap, eic7700_reset[id].reg,
+				 eic7700_reset[id].bit);
+}
+
+static int eic7700_reset_deassert(struct reset_controller_dev *rcdev,
+				  unsigned long id)
+{
+	struct eic7700_reset_data *data = to_eic7700_reset_data(rcdev);
+
+	return regmap_set_bits(data->regmap, eic7700_reset[id].reg,
+			       eic7700_reset[id].bit);
+}
+
+static int eic7700_reset_reset(struct reset_controller_dev *rcdev,
+			       unsigned long id)
+{
+	int ret;
+
+	ret = eic7700_reset_assert(rcdev, id);
+	if (ret)
+		return ret;
+
+	usleep_range(10, 15);
+
+	return eic7700_reset_deassert(rcdev, id);
+}
+
+static const struct reset_control_ops eic7700_reset_ops = {
+	.reset = eic7700_reset_reset,
+	.assert = eic7700_reset_assert,
+	.deassert = eic7700_reset_deassert,
+};
+
+static const struct of_device_id eic7700_reset_dt_ids[] = {
+	{ .compatible = "eswin,eic7700-reset", },
+	{ /* sentinel */ }
+};
+
+static int eic7700_reset_probe(struct platform_device *pdev)
+{
+	struct eic7700_reset_data *data;
+	struct device *dev = &pdev->dev;
+	void __iomem *base;
+
+	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
+
+	base = devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR(base))
+		return PTR_ERR(base);
+
+	data->regmap = devm_regmap_init_mmio(dev, base, &eic7700_regmap_config);
+	if (IS_ERR(data->regmap))
+		return dev_err_probe(dev, PTR_ERR(data->regmap),
+				     "failed to get regmap!\n");
+
+	data->rcdev.owner = THIS_MODULE;
+	data->rcdev.ops = &eic7700_reset_ops;
+	data->rcdev.of_node = dev->of_node;
+	data->rcdev.of_reset_n_cells = 1;
+	data->rcdev.dev = dev;
+	data->rcdev.nr_resets = ARRAY_SIZE(eic7700_reset);
+
+	/* clear boot flag so u84 and scpu could be reseted by software */
+	regmap_set_bits(data->regmap, SYSCRG_CLEAR_BOOT_INFO_OFFSET,
+			CLEAR_BOOT_FLAG_BIT);
+	msleep(50);
+
+	return devm_reset_controller_register(dev, &data->rcdev);
+}
+
+static struct platform_driver eic7700_reset_driver = {
+	.probe	= eic7700_reset_probe,
+	.driver = {
+		.name		= "eic7700-reset",
+		.of_match_table	= eic7700_reset_dt_ids,
+	},
+};
+
+builtin_platform_driver(eic7700_reset_driver);